You should double check your BIOS Setting (sorry to be a little B*, but this is the general way I reccomend, for other's problems, not necessiarily yours) especially if you have just flashed your BIOS.

If you can get the disk to boot, use the "knoppix testcd" option, but if it still freazes after loading start to use the no options (just hit F2) note: there is no spaces after no, ie noscsi NOT no scsi.

If the disk doesn't boot, double check your burning program's settings, and that you burned it as an IMAGE, not a FILE (I am sorry again, but I had a moron who wasted 10 of my CD's doing this... stupid family...)

Try to find a CD that does boot in someone else's system, and then try it in yours *can be any CD, you are just verifing that your hardware supports the El Torro standard for CD booting*

If you can't get any thing to work, then (your best source) find a friend or a collegue who has delt with this issue, (or a Linux User's Group nearby, they should help) since i still find it hard to ask questions without the use of my hands.

Sorry to seem like a Prick, just wanted to give you the full thought process of my tech support (at 3 A.M. after a long day) to lower possiblities.

zentu

P.s. Sorry for the atroci... bad spelling.