Good luck searching for that OS
I love the virus, but it is still too often that I am sitting playing even just the factory patches when I get stuck notes, audio glitches, controls misbehaving, etc. and I wonder to myself how many people at access actually spend real time just playing their own instrument.
There are plenty of positives, though. Their support team try to respond to everything you send them (although don't bother asking them to test something for themselves..), we got OS 3 with TI2 features for free on the TI1, the factory patch banks are really great and contain patches from some really talented folks, etc.
I do wish they'd nail all the stand-alone issues at least (of course, that's what I use most!). Maybe one day. It gets better, but very, very slowly.