I picked up a Gateway wireless optical mouse, Model # MR-0350T, with a receiver Model # RR-0403U, at a computer show. When I connected the receiver to my USB port, my computer began the new hardware recognition process. I realized I did not have 2 AA batteries for the mouse and aborted the installation process. After I picked up and installed the batteries and reconnected to receiver to the USB port, the new hardware process did not automatically commence. The light on the mouse is lit. However, I cannot get the mouse to function. I do not see it in Device Manager, and have not been able to find a way to install it. I tried dicsonnecting the receiver, rebooting and reconnecting the receiver, without success. Apparently, I must obtain the specific driver for this mouse in order for it to function. The Gateway site does not have a driver for this mouse. Does anyone know who manufactures this mouse for Gateway, and where I can get the driver? My OS is XP Professional.