Using WinXP and Contour USB optical mouse. Today, several times the cursor
didn't move when I moved the mouse; then it would start up again. Finally,
Windows informed me that a USB device was malfunctioning and I should try
another port or another device. I plugged in another mouse, and it's working
fine. The Contour mouse is expensive to replace (around $110), so it's a
good thing I had an extra one in my office. My question: Are optical mice
fixable, or should I just toss it?

Thank you!

Jo-Anne