problem with USB wireless mouse

[20Five]

so i just plugged my roomates jumpdrive(its an older one) into one of my USB slots on my laptop.. transfered some files, and then my wireless mouse stops working

its a hp, theres a small peice you plug into a usb port to pick up the radio signal coming from the mouse (which is still on and looks to be sending a signal)

my problem is no matter which usb port i plug the reciever into it doesnt seem to be turning on.. almost like i disabled the computer recognizing it or something by plugging the other one in at the same time..

does anyone have any quick ideas?

tried messing around in the control panel USB controller area, but dont seem to be getting anywhere... i hate the keypad mouse thing and would love for my mouse to work again

any help is appreciated