Before Christmas, I was running a GeForce 2 MX 400, with a USB CD-RW 4x, and a Sony CD ROM. For Christmas, I recieved a GeForce 3 Ti200 and a Plextor 16x CD-R. At this time I only had a 250W power supply. I booted up. The GeForce3 worked fine, but the CD ROM and CD-R were not showing up in My Computer. But, they did however show up in the POST. So, I thought it was merely a power supply issue. Today I picked up a 350W power supply. Plugged it in, but no difference. The CD ROM and CD-R do not work still. I head into Device Manager, and notice that each of them are recieving Code 19 errors (registry). Which they were the day before when I first installed both the video card and CD-R. So far I have tried the following to no avail: 1) Uninstall both drives in Device Manager. Booting back up. Still go code 19 errors. 2) I even put my old GF 2 back in to see if my GF 3 was faulty. Still, I got code 19 errors. 3) I tried just using the CDROM, got code 19 errors. I was wondering if anyone else has had a similar problem? If so, was it fixable? Thanks, Dustin H.