... if i move the pitch bend on my Roland D-50 it doesn't spring back to precisely 0...
Maybe OT but I have the same issue with the bender of my PCR controller and it's annoying even without a perfect ear... I guess Roland type pitch benders are just mechanical crap... always wanted a Korg-type joystick instead... 'til then I'll try to give it a second bump to make it jump back to zero... 
You asked for a recommendation. You always can do different anyway... 
Opening a unit, finding a flaw that probably could not be fixed with simple tools is just useless effort. In addition there are legal issues with guarantee it you take things serious.
So what's my message? Simply avoid useless work and trouble. 
"Electronic music" does not mean that we can understand complex electronics by just opening it... then looking at black chips... that's quite useless even if you have an engineering degree... also pro technicians often can't do much, finding errors in such devices... it's too often complex and too time consuming to be done seriously... then we are back to "PC" repair strategies... well, lets exchange this and that and see if it works again... that's where we end up too often when it comes to "repair" of our beloved electronic gadgets... engineered to be "affordable" (referring to complexity) and... one way.
If anyone is able to find the real errors in a device at all it would be the manufacturer - but then again, a specialist from there is needed for new development and would be even more expensive doing this job... working hours in germany are expensive... so expensive that even germans can hardly afford them...
I don't think I understand your question proper but if there is any solution, check the audio routing options in the virus.
I strongly recommend returning it.
If some metal piece inside is loose it could have caused some short circuit or damage hard to notice but might cause problems later on.
If it's something else - well, any piece broken apart inside - forget about it and run to return it for refund before you are told it was your fault...
If you are brave, open the unit, see what's loose and fix it.
Does the same strange thing happen with the sine wave from the wavetable oscillator model?
I think "Wrong" isn't a break through - just pushed by usual pop music marketing mechanisms and the great legacy of the "Depeche Mode" name... But as always - taste can't be finally discussed...
Basically it is best to get a JP-8000 to get this sound...
Maybe second best is getting samples of the original - also I admit I do not like the static character especially of sampled synths too much either - but it's most original anyway.
Everything else may just come close. Even if it sounds alike you'll never get the feel to play the real thing... which is often what I guess people finally miss, isn't it? 
...why not having a look on the Korg Legacy Digital Edition...?
Wavestation and M1 have some really good stuff for these signature sounds.
On an actual PC you get also a lot more polyphony out of these emulations than you can dream of with the HW and there are pretty close - not to mention these offer features exceeding the vintage originals . like filter resonance...
Besides: Covering these songs well (or brilliant) is more important than having the perfect sound for it... Sorry, I've heard too many bad covers using fairly well sounds.
.It's up to everyone but I personally think it's a bit crazy to use a virus as an EXF processor only - simply for cost reasons, especially live.
But if you don't need your virus synth in every song or bounce down tracks to audio why not experimenting with it?
I've requested this multiple times too - without any official response.
I only know of the "patch complexity indicator". Many interesting patches have complexity 3 or more - additionally to more or less unison settings - there isn't much left from the promised huge polyphony...
"up to 100 voices" in the virus 2 brochure is just again number cheating as all other manufacturers do.
I remember having read lately "20-100" voices which is more serious - if you don't have too many parts with their own effects... It's always the same old story, who is going to spend two grand for a 20 voice digital synth - even it has "that" sound... and the snow is even worse in that regard - "10-50" voices - both for the TI2 versions... so what's left for poor TI 1 users?... "16-80" voices... in theory.
Finally I think it's enough of polyphony when you play the thing live as a synth but you may quickly run into trouble using it as a multi timbral sound module.
...well, there's some stuff easier to get from other gear or software in minutes where you need to tweak a virus for hours... this is what I meant with "fence" - not trying to get everything from it. On the other hand there might be stuff much easier to get from a virus - so use it if you have one. In this sense every piece of gear or software is a fence...
Thanks Mark.
In a way I can not understand people... who are never satisfied with what they have. Maybe it helps to re-lable the Virus as a "vintage VA synth" so people can change their mind without loosing their faces not using the latest hype... LOL
Even more strange I see those people who can't go without bit and sample frequency reducers - but of course best have a basic signal path of 192 kHz... 
But anyway, high end noise can't be discussed as taste can't be discussed...
Eh, what about a Virus in a golden housing? ...for a warmer sound...
I think Access will never tell us the full truth here so we can only speculate.
I don't think the TI's basic processing path works internally with more than 4x.xx kHz. Still there can be some stages oversampled and then things get difficult.
Remember how old the basic TI HW design is. TI2 isn't much more than the same thing with a new DSP claiming 25% more calculation power - which isn't a really huge change and nothing to trade in a TI for a TI2...
But assume you could switch to 96 kHz, what do you expect? There is just one thing for sure - half polyphony. Let's add all the new OS features I am curious when the TI has problems producing even one note... On the other side I hardly believe you will hear twice the sound quality.
To be honest, the 96 kHz is just a number. For live uses on stage this is totally useless as all locations have by far stronger and other issues than the perfect hi end spectrum. I don't say it's totally useless but to benefit from that you need to be picky almost everywhere. One of the points is the converters clock precision. If the jitter is to strong here dialing up the sampling rate simply gets you nothing more than higher calculation demands... My personal opinion here is go for 24bit instead of 96 kHz.
Coming to "production", do you really think the majority of music consumers do have high end audio equipment at home? I guess no, they have mp3 players and cheapoo earplugs... do you really think 96 kHz sampling rate make the cake here.... maybe better invest some bucks in cheap earplugs to get an impression on how your music might be really perceived by the masses... if you really have such an audience, do you?...
To finish with, the TI's DA converters are quality converters that sound really good. If you find this outdated you have to dump the TI as it is outdated too - HW wise. I personally wouldn't spend time to think about 96 kHz sampling rate until the tradeoff in polyphony would be much less important than it is today. But even if, I don't think anyone really basically needs 96 kHz - unless you do a lot of pitch shifting or similar extreme things with the output signal of your virus...
Finally - better spend your time making music than believing you can't go on without a very high sampling rate... and when you're a bit older your ears won't notice the difference anyway, even it was ever there...
Unstable tuning is very analogue behavior. Welcome back. However, the vintage analogues didn't have any audio latency... LOL oh, and most of the more "modern" ones had an easy to use tuning button - which didn't need a degree in DPS processing to even understand what's going on...
Just see the state of the art in synth parameter based sound manipulation with Arturia soundmap in many V2.x VST updates.
If you want it plain "soft", try Topten Software's VST host Cantabile. It's VST editor windows have parameter based sound morph support too - so not meant for realtime tweaking but sound design - but is very flexible and works with any VST supporting parameter autiomation.
Don't fence yourself in the virus box, no device can do everything nor should it do everything.
I think it would be better to update the Virus HW to a much more powerful DSP first.
The many great suggestions here will turn the current Virus TI / TI2 into a "lame" synth far too expensive per voice / note compared to other solutions... The concept needs more air to breathe again and better interfacing like USB 3 and Firewire...
In times of economical crisis and everyone saving any buck wherever possible I doubt all this will happen soon... 
What's the reason for this demand?
Philosophically I am absolutely with the led-ring / encoder fraction of people...
However - and beside cost factor - it is an old unsolved story what to prefer - pots or encoders. See that Dave Smith lately offers two versions of his synths and the initial versions were with endless encoders - the second ones with pots again by user requests...
With the Virus you also have to consider that many pots are multiply assigned to (oscillator / filter) pages and therefore to more than one parameter. Well, the envelopes are not that way, great for programming but useless for live tweaking - anyone who tweaks envelopes live? I also remember complains about the pots in the Virus reacting far to slow - hopefully this is just an OS4 beta issue...
My personal preference would be: The 3 value knobs should be endless encoders with led ring as these are intentionally meant for live tweaking and value jumps or dead zones are unacceptable here.
I can't imagine people would accept price increases - the virus is already on a top end here. Compare Arturia's Origin - a great synth of it's own too - however, the special sale these days confirm also that it's difficult to sell enough units at a price point of 2.500€... even the HW is far advanced to a Virus.
To get something really new it needs to have a total redesign of Virus HW - the facelift to TI 2 is just maintenance and no innovation at all. The Virus is a great concept but lacks processing power. Polyphony is practically far less than claimed as the fat sounds are too often unison taking many notes and patches with complexity level starting at 4 (i.e. 4 basic polyphony "counts" by itself). It's easy to keep a virus busy with just one fat pad sound and for that it's simply too expensive. The constant and very welcome OS maintenance also have the backdraw of taking more and more DSP. More features? 3rd envelope, more complex filter models,.... useless without a heavy dsp power increase... All this is even more a shame because the Virus has one of the best multimode behavior of any synth I know- means glitch free patch changes.
To end up, I always missed dedicated buttons for direct sound change. Just up/down buttons for a life synth is ridiculous..
Let's dream on, what about step sequencer buttons / knobs like a Radias or Origin... or come back to earth, a much cheaper Virus box (than snow too) without any fancy knobs just controlled by TI would be very often a more than sufficient solution too...
It doesn't matter that much.
However, electronic ages, the more when it is on and the more it heats up. The latter is a non issue with any Virus.
Maybe in your case switch the machine on in the morning and off in the evening. It makes no sense leaving it on for hours over night when you don't use it.
Just my 2ct...
this OS is for TI1 users as well. marc
Again brilliant product service, highly appreciated.
However I hope a new OS does not mean again less polyphony... 
