Mouse acts really strangely

[mathq]

When I plug in a USB mouse (wired or wireless), the mouse won't move, but sometimes, when I move it, it does a right click, so I know it detects something. I have a wireless logitech set which includes the keyboard and the mouse. The keyboard doesn't act strangely. Everything is fine with the keyboard.

 

Also, when I plug in a USB key, it doesn't detect it and the LED doesn't blink (on the flash drive).

 

Thanks,

xmath279

 

PS.: I use my trackpad, but it's annoying.