thank you, zehpavora, :) that explains everything,
My sys specs are: 400W PSU, Athlon x2 5000+ 3050mhz, 2gb Corsair XMS ddr2 800 @ 440mhz, Gigabyte 9600GT with a zalman cooler, Gigabyte motherboard with a 690V chipset (old, and the main bottleneck)
Thank you guys for everything :) If someone...