i have a ati 3.01 dvd software on my time PC wich already came with it.after wacthing a few dvds on my PC i went to the shops and brought mission impossible 2 and it loaded its own PC friendly software.when i tried to play MI2 nothing happened so i went onto my ATI software it said play cannot continue. now not 1 of my dvds works on the PC .any ideas how to fix the problem