Hello, I am having a very confusing problem. I just finished putting together a gaming rig, now for the confusing part: I can't get a PS2 or USB keyboard to work on the post screen to enter the bios most of the time. I have gotten the PS2 keyboard to work a few times from restarting the system a multitude of times, I have been able to alter the bios these few times but it will not work after I have saved and exited the bios. Twice I have gotten past this problem, but the system would not boot, it would just restart automaticly and throw me back to post with a non-working keyboard. My question I guess, is there anything I can do to make the PS2 or USB keyboard work consistantly in post/bios? I'll list my specs now: XFX nForce 680i LT SLI mobo Intel E6660 Quad core cpu OCZGX 850 wat PSU 2x evga nVidia 8600 GT 256mb DDR3 PCI-E cards in SLI Corsair 2gb DDR2 Twin2X matched XMS2 ram I have made sure everything is connected properly and that the mobo is not grounded on the case(properly fit with spacers/risers) and have tested all parts, everything seems to be in working order besides the keyboard not working 90% of the time in post. Any help would be much appreciated.