I installed the newest NVidia drivers for XP (v29.42) and it caused PowerDVD 4.0 XP to have corrupted playback of DVDs with the hardware acceleration turned on. If I turned off the hardware acceleration and the picture is fine, although it's a little bit choppy at times. I then I rolled back to the previous drivers and everything worked fine with hardware acceleration turned on. Thank goodness for the recovery feature of Xp. I'm just glad I actual created a restore point just before I installed the new drivers (I make it a habit to do so). My system is as follows: AMD Duron 1000 640MB RAM Geforce2 MX2 400 64MB Windows XP PowerDVD 4.0 XP I have all the latest patches to XP and my drivers, but the newest NVidia drivers cause problems. Anyone else experience this? I don't know if it's the video driver or PowerDVD. Thanks!