I am having the exact same problem.

Dell Inspiron 8200 notebook with Windows XP.

Downloaded the .iso, confirmed successful download with the checksum file.

Entered the BIOS on start-up and moved CD/DVD/CD-RW to the first position in the boot queue (before floppy disk and hard disk).

Used Roxio to create a bootable CD. Attempted it with the Hard Disk Emulation and No Emulation options in Roxio.

With both emulation methods, when I slipped the bootable CD in the CD-RW drive and re-started the computer, all I got was a blinking cursor in the upper left corner of the screen. No Knoppix. :-/

Is the problem with Roxio?

Thoughts? Anyone?