OK Tonight I was hoping to watch some DVDs... lo-and behold I don't have any DVD software installed so I figure I'll go download the latest ATI software and play them through it. Well I download and install the first part just fine, but the DVD part is where I hit the problem. It asks me for my ATI cd, so I insert it into the drive and let it take a look. It comes back saying the cd isn't a valid one. I checked to see that MMC 8.1 is indeed on the disk and indeed it was. Is there something I am missing here? This IS a Built-by ATi Radeon 9800 and the ATi cd.