I love my Virus but a few things really bug me...
The first doesn't seem to have a solution... the Virus should have really had USB 2 and full 16 channel output via the plugin--but alas, its USB one... is there a mod on the way for this?! It was kind of depressing and dissappointing to find this out when I got my virus.
The second feels like a software/OS fix... can we please have more output volume out of the VC?! In Logic an instance of Virus Control barely moves the channel meter. Its WAAAY quieter than any softsynth.
There's a discussion here too...