Just read AVIVO vs. Purevideo HD: What You Need to Know about High-Definition Video at Tom's Hardware - Put's its more in focus - and covers the problems ive been having! Like Nvidia only releasing HD drivers for Vista for the 8600 boards. Im also running the llatest version of powerDVD - but its not as good as DivX player which is far the best on my system - playing without any delays/clicks.

http://www.tomshardware.co.uk/2007/0...revideo_hd_uk/