digital cam VS mouse

it's all weird. :P whenever i turn on my canon A40 near my mouse it will hang. and i've tested it out. it's just a normal, cheap scroll mouse and not even optical zoom :P then i have to restart my computer to get it to work again. geeez...and weird thing is... turning on the cam near an optical mouse doesn't affect the optical mouse at all. but it screws up the scroll ball mouse.does digital cameras send out radiations?? or any type of wave that causes all that?note: the camera will affect the mouse whether the camera is connected to the computer or not. ^^:;;;no idea....