I have a HTPC and I noticed that when ever I use the intel USB mouse, it causes various noises that are barely audible when using my headphones. I have a hercules GTXP hooked to USB port1, and the intellimouse into the other USB port. Whenever I minimize a window or right click, I hear a "bleep", When I maximize I hear 2 bleeps, when I use the scroll mouse I hear scratch noises. It's very weird cause it doesn't make noises when I use the keyboard instead of the mouse. What options have we? Should I not use a USB mouse due to the noise it's making with my sound card?