The only snag that I have hit with the Vista Ultimate upgrade is that the sound card is fully functional but the machine/Vista cannot see the speakers. I've been using the Logitech S200 speakers (or were) when I bought the box back in December and was informed that there shouldn't be a problem when I upgraded from XP Pro. Logitech doesn't seem to offer support on their site for this model.
I didn't purchase a high end sound card because I don't really do any gaming or video/audio editing that would require it. The card is a standard HD audio device. Any thoughts or ideas other than buying a new set of speakers and/or a better sound card?