Hi,This is my first post, please forgive me if I don't know proper ettiquette. I have a problem in Windows does not recognise USB device, namely a Logitech Wireless Mouse. I have previously been using it successfully and it works on another computer. I get a message saying One of the USB devices has malfunctioned and Windows does not recognise it. Also when I plug in my Microsoft (wired) mouse it does not work. It also works on another computer. I have changed the battery in the wireless mouse. I have tried to get help and have done some troubleshooting. I am not so cluey on computers, I have just purchased the Windows 7 for dummies. I have unistalled and reinstalled the driver. Any ssistance would be greatly appreciated.