Just rebuilt a system with a G41MT-S2P Rev 1.3 and everything works swimmingly other than the mic. It picks up, but only if i'm whistling into it from close range. Mic was checked for functionality on another computer and is perfect. Drivers were updated to current and the Nvidia audio drivers that came with GTS 450 were deleted. I feel like I've tried everything. Anybody heard of this problem before?