I was using the original windows XP home that came with my AAO, after a while i decided to plug in a USB mouse. a few hours later (i'm not exactly sure when) the touchpad stopped responding, even when the driver was running. I thought it may just have been a driver issue, but then when i reformatted the whole system to put on macOS/windowsXP pro/Ubuntu, the touchpad still does not work.. I am still using the USB wireless mouse. Has anyone else had this problem? Need some advice before I try to send this back and ask for an exchange. Simeon