i need some help...No one is answering on the forum

I have a problem with my Medianix live CD. After the boot process, I can't see anything, the screen is blank. I think that I have a problem with the video card because I've put the live CD into another computer and it's working perfectly. I've also try to put another monitor to my PC but the problem persist... So , does anyone know what I have to do, because I really need to work on my pc  for configuring a PBX!.
HELP ME PLEASE!
Thanks!
I have : AMD SEMPRON 2800+ 64 bits
Field Value
Motherboard :Gigabyte GA-K8VT800 v2 
Field Value
Video Adapter ATI RADEON 9600 (9550) Series Secondary (128 M
512 ddram, HDD 120 Gb

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