Thanks so much. I looked up the driver on the HP site and note that it is dated April 2008... a good sign . Will try it soon after a full backup.
Vista so far has its share of little surprises, but so far there have been simple fixes. I am a programmer and need Vista for my development and testing. Going from a 6 year old PC to one with a quad processor is quite pleasant, though it has taken me a full week to get things mostly working. Bottom line... I am liking this Vista PC.
P.S. Double thanks for signing up, as I note it was your first post!
Yes the z3100 Vista Drivers work.