Knoppix Locks My Computer

Just burned a copy of Knoppix and tested it out. The first time I was able to boot into Knoppix just fine, but I locked up after about 3 minutes of use. The other 2 times I attempted to boot to Knoppix, I locked during the boot process (while Knoppix was starting system files). Any help would be appreciated.

FYI - Using a Dell Dimension 2400
256 MB DDR
2.4 GHz Celeron
40 GB HD (30 GB Free)

Let me know if you need more info...

look if it works if you type knoppix 2 nosmp noscsi after the boot:
then try the other cheatcodes under docs. there is a LOAD of things to try,
the ones above might work, you won't have a graphic environment but... if it works, reboot with ctrl+alt+del, the try without the 2 (that causes the text only mode)

I'll give it a go. Thanks for the help.

noacpi and noapm are two other candidates.