hi members htpc with the following spec. amd athlon xp 3000 asrock k7vt4a m/board 256 radeon 9800se(updated driver) 1 gig ddr pc2700 the problem i have is a very juddery picture using power dvd 6 deluxe. ihave tried tweaking all the settings but to no avail, even reinstalled power dvd. other problem is a lip sync delay. i have tried win dvd 4 and get the same judder but no lip sync trouble. pc feeds a h77(tried pj on a friends htpc ,no problems at all) help please! thanks.