It hasn't been a good day so far, an other PC is sick. For the last couple of weeks, my cheapo logitech mouse has stopped working a few times. Each time I reinsert the batteries and it would go on for a while longer. It is from a wireless logietch keyboard and mouse set. The keyboard is still working. Today, the reinsert batteries trick did not work. There is no light from the underside of the mouse. Even if my newish wired usb mouse from my main rig did not work when I plugged it in. OS is Vista 32. There is no yellow exclamation mark in Device Manager. It just happens to coincide with the installation of Mediaportal where I was trying to get the remote to work with MP. Any thoughts?