Plz help,I dont know if it is mentioned before,at least I didnt find it. I have a brand new MB and have this problem, i bought a logitech usb mouse which worked fine until today,I plugged it in and it does not respond. It happened 2 times before that but after a restart the mouse worked fine,however,today it wont work at all!!Any1 have a clue about this issue ??

P.S. The mouse works fine in any other pc and the usb ports on MB also work