Noise when resizing windows (Not from speakers)

This is really crazy and is totally arquard.
I've got a Razer Diamond Back mouse and have for about half a year.
Anyway, I just built a new pc consisting of the EVGA 680i motherboard and E6600 conroe CPU.
Everything is working perfectley expect when i resize a window (i.e. dragging a corner of the window and making it bigger) I hear a noise coming from my PC. It sounds very much like it is coming from the connection between the connection of the mouse and motherboard. I can't really label the noise but i'll see if it's loud enough to pick up on the microphone.

I highly doubt this is a common problem but any feedback, even something like "Yeh that's totally crazy" or whatever will be good.

Full system specs are in my signature. I've kept the same case, 80gb HDD,
Optical drive of my last PC