I own a virus ti desktop 1 for my studio and a virus ti snow for travelling on my mac book as sound device and synth. it cant be used at the moment due to the driver issues. that means i cant produce music while im touring!
it's almost 2 months since the mavericks update came up without any solutions from access to fix this thing!
To be honest its pretty cheeky to tell us to not shooting the messenger!! we paid a lot of money for it (and by the way for your support), so don't tell us to stop shooting the messenger! hurry up with this fix!!!
You can't use virus as sound card in itunes, but you can use virus as sound card in your sequencer like logic and continue to produce music. Just try.