I use Windows XP and yes I have installed Nero and something else but that was hours ago. I was using a cordless Logitech mouse but I took it out and put a mouse with a cord in and it kept moving. All of a sudden a few minutes later it stopped. Now all I have to do is to work out how to get that stinking cordless mouse working again. The batteries are alright and I hav pressed varius buttons but it loks like I am stuck with the corded thing that is unless someone can tell me what the sequence is to activate the cordless mouse.