Amnesia going haywire although passed system specs

[TaintedTobi]

Ok so iv been snooping around these forums only to find similar, but not exact problems as mine. I am trying to run the Amnesia demo to test it before i buy it and at first it would give me a renderer #0 error message so i downloaded some driver updater freeware (I dont think its reliable) and updated my drivers for my graphics card. After that when i go into the character selection screen my program runs extremely low and the music is all crackly and distorted even on the lowest settings. I went to can you run it and my PC exceeds expectations and says it should be able to run on full quality, but idk. Mabye if someone can refer me to some drivers or something, anyways here are some specs

Windows 7 Ultimate 34-bit
HP Pavillion a6414f
AMD Anthlon 64x3 Dual Core Prossecor
NVIDIA GeForce 6100 nForce 430

Any help would be apreciated thanks