I have just purchased a Sony NEC Optiarc AD-7633a DVD drive for my Acer 1672 laptop. When I try to play a pre-recorded dvd film I get the following error message :
"Windows Media Player cannot play this DVD because there is a problem with digital copy protection between your DVD drive, decoder, and video card. Try installing an updated driver for your video card"
I have downloaded the latest drivers from both the ACer site and ATI who manufacture my graphics card but the problem still remains. Any ideas folks?