I've run into the issue on several machines of the same model. After I perform a BIOS upgrade, CDShell hangs on the screen that comes up after the splash screen and before the script actually runs. I don't see anything that looks like an error code.

I'm fairly certian it's not an issue with the physical cd as it works in other machines and the cd never leaves the drive.

I'm using the Doctor XP sample script that comes with cdshell