My mouse(a vanilla G400 that's almost 3 years old) has stopped working on and off since around around mid October-November when I brought my PC in, which lead to Win7 64bit being installed on it. because of that, I tried using it on my front 2.0 usb port but soon, it after started working again with other stuff(mostly a x360 controller and a smartphone but likely USB drive(s) too) and has worked perfectly since as far as I know. I also have a front 3.0 USB port that has never worked. what would be causing the problem? the front 2.0 usb port has been working fine suggests that it's the mouse, while the 3.0 not working suggests that it's either the motherboard/both or that my PC was built wrong. I also tried using my mouse on my tablet. at first it was fine, but one time it didn't work and the last time it did work. I should try it again.
my specs:
i5-2500k
Gigabyte Z68A-D3H-B3
GTX 570
4 GB DDR3 Ram

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