Ive just installed a Sapphire Radeon 9500pro and the bundle came with PowerDVD XP4.0. It installs OK, the diagnostic runs seemingly OK, but the bl**dy thing just wont play DVD's. For some reason it'll let you know the disk title in the menu help popups, but hit the play button and.... Not a sausage! Windows Media player works fine with DVDs/any disc I care to place in the drive, but powerdvd just sits there and does nothing Anyone else had this problem??