I ran the Knoppix Live CD just fine, and it worked good with the "tohd" and "fromhd" cheat codes. I like it so well, that I did a full install to the hard drive using the install option from the menu when Knoppix was loaded from the CD. However, after the HDD installation was complete, my internal CD-ROM and my external USB CD-ROM drives stopped being detected. Any ideas? My other USB devices seem to be working.