Hello. I'm currently running on 10.5.7 Leopard OSX. iMac. Recently I've been experiencing the flickering of the mouse cursor when Firefox is switched open. I've cleaned the Mighty Mouse thoroughly and I suspect it's a s/w problem, rather than a hardware problem. Any solutions to rectify this issue? Thanks in advance PS: Whenever I enter Spaces mode on the Mouse, it would close back in whenever I clicked on it!