I have this very weird problem. I'll explain it quickly. My 1st motherboard was a MSI P35 Platinum, but it died on me. So I got another motherboard from a friend, Gigabyte-P35-DS3R. All the rest are still the same. Yes I know its an old system, but I have no issues with speed, the PC is used for work only. It's running fine with the new 2nd hand motherboard, BUT When I plug a USB device into ANY USB port, be it front, side or rear, 1 out of ever 4 times the screen goes blank and a few seconds later a message pops up saying the nVidia display driver has stopped responding and has been recovered successfully. Sometimes it does not recover at all and I have to reset the PC. This is NOT a driver related issue since this happens even it I plug a USB device into a port while the computer is in the BIOS boot menu (in other words Windows has not even started yet). I suspect this has something to do with static electricity, but I just simply cannot figure out how to stop this. It is extremely annoying. My hardware: Gigabyte P35-DS3R (latest BIOS version) Intel Q6600 (no overclocking) 2x4 GB CMD4GX2M2A1066C5 EVGA nVidia GTX 560 2GB Gigabyte ODIN 585W PSU I have checked the PSU grounding, and it seems to be working fine, it is properly grounded. I have no idea what is could be and I have never heard of a similar issue before. Any ideas as to what I can try to do?