Thx for response...
But this doesnt helps.
Well... I have new 2x 1gb ram 800mhz dimm...
I had same problem before... but we changed RAM and still same.
I dont have 2 os installed... Only Vista Ultimate... I have same problem on
Xp (another hard drive).
Oh and about drivers... I have lastest nVidia Geforce 8 series drivers...
And btw if this could tell you some think... My system:
cpu: Intel core 2 duo e4200
moutherboard: Intel Extreme DP965LT (updated bios becouse same error before )
graphic card: nVidia Geforce 8600GT SLI
ram: 2x 1gb DIMM 800mhz
harddrive: 320gb
monitor: Samsung syncMaster 205BW 20 inch 1680x 1050x (i dont know if this
helps)
power supply unit 400W
Damn i dont have luck...

I'm asking you here cuz i lost my Hope....