You will have to send me some more information about your system and how you have things setup for me to diagnose ?
its a biostar p4m89-m7 with a c2d e6600
VIA P4M890
VIA VT8237R+chipsets
2x1gb sticks of ram
lam is realtek rtl8201CL
and a XFX reference 6950 2gb
running off a 4gb USB key