Mac thinks mouse is a keyboard

Whenever I plug in my usb wireless mouse, my Macbook Air and Mac Pro both think that the mouse is a keyboard and won't register the mouse's movements at all. Is there a way to fix this?

The mouse is a cheapy Gigaware wireless usb mouse and I'm running OS X Mavericks.

This restored the default mouse behavior for me, though it looks like I had a different problem.

1. Open keyboard settings in System Preferences > Keyboard
2. Click Modifier Keys... button in bottom right of panel
3. Select your mouse from the dropdown
4. Click Restore Defaults button to restore default behavior.

If that doesn't work, you might also try these instructions for removing your keyboard profiles and then restarting.