My microsoft mouse stopped responding few days ago (usb connection). I opened the device managed and it shows error 24 on the device. I downloaded the latest drivers and reinstalled device but mouse pointer froze in the middle of the screen. I tried plugging in to a different usb post but no results. I used a different mouse but no results either. I tried plugging in my ipod to one of the usb ports and computer is not seeing it. Device manager is not reporting any conflicts with any of the usb ports. Using only the keyboard to move around is really stressful. Any assistance is greatly appreciated. Thanks