I had all kinds of problems with ViiV, aka Away mode. I had everything set to go to S3 sleep and by and large it worked well. Wakingup, recording, going back to sleep.
Every so often, it wouldnt go back to sleep. The screen would go black but the fans would stay running. This happened often enough to be really annoying.
Looking in the Event log, it would say, "Entering Away Mode" rather than saying "Entering Sleep Mode". Eh?
I couldn't figure out how to keep it from entering Away mode so I ended up disabling Viiv in the bios and things went back to how they should behave, always entering sleep mode.
In my opinion, Viiv isnt ready for prime time. Either that, or Vista has a bug in it.
-dickm