Sadly, my geforce 7800gtx died on me today, so I need a new video card. I would love to get another 7800 gtx, but I'm low on funds atm, so I'm also looking for a good deal on either a 7800 gtx or a 6800 Ultra.
I just had the exact same thing happen on my i9300 with a 7800 gtx. Have you had any luck finding out what the problem is? I'm in the middle of tearing my system apart, in hopes is something other then the Video card.
Where are you getting your Knoppix ISO from?
I got mine from http://linuxiso.org
I burned it once, and have used it on 4 of my personal computers over the years, plus have used it on several friends computers, without problems.
LOL That was the first thing I thought of... When I tried my first pin-mod, my lappy was doing the same thing. Lights would flash for a sec and then nothing.... I double checked everything, tried reseating the CPU 3 different...