If there is anyone that actually has a stable setup (For more than 6 months) Please post your hardware/software configuration below.
(I have a Virus TI, brand new iMac with OSX 10.9.5, Cubase 7.5. Virus was working basically OK, apart from an annoying latency that gets worse the more tracks I have in my projects, then after I installed 5.1.1 beta, it all went horribly wrong - after multiple uninstalls, re-installs of 5.0.8 - my iMac no longer recognises the Virus. It is totally mystifying, as I have the exact same (cloned drive) on a macbook pro - and on there it IS recognised!??? Driving me NUUUUUTS )