I am hoping someone can help me out with this. I just installed a DVD-ROM drive, and it installed without a problem under Windows XP Pro. I didn't even have to go through the whole "found new hardware" installation of drivers. It just was up and running. My issue is this: no matter what software program I use, I cannot seem to play any DVDs. I keep getting a "The exception is Illegal Instruction" with exception always being 0xc000001d in different locations (e.g. 0x0041866c, 0x1c413a0c). I have tried Real Player 10, Windows Media Player 10, Quicktime, and WindDVD 3. I know the drive works because I can play audio CDs and other CD_ROM discs. I just can't play a DVD. I've tried different ones. A given player would regognize what the DVD is and show me a cover of a movie, but then not play it. Someone please help me out with this.