mattyoly, I think you are being slightly harsh...
ygn, welcome to LQ! I'm guessing what you're trying to say is that you've tried quite a few Linux live CDs, but none of them seem to work successfully? And you've just tried Knoppix-StD, and that one almost worked?
Well, I had exactly the same problem on my laptop, and actually, I left it at that. I tried several distros and they all failed to boot. Now, I know there must be some startup option that you can apply before clicking the infamous "Enter" when you pop in the CD on boot which will help it work, but I haven't discovered it yet.
What you could try doing though is using one of the more popular live CDs/DVDs. The SUSE Live DVD
is very good, and you may find that it works on your system... I personally use the Ubuntu
live CDs when all else goes wrong...
Try those out, and see if they work. I don't think you'd find Knoppix-StD that useful anyway, as it's just a stripped-down version of Knoppix with an array of powerful security tools. Try the ones I suggested, and also consider installing one of them (like Ubuntu) onto your hard drive to test if that works.