My mouse keeps connecting and disconnecting randomly, it's just a cheap £10 mouse that I bought as a replacement for the one that broke, it's only started to go wrong. It keeps disconnecting and coming back on, and says USB Device not recognised. It's an optical mouse and I have no mousemat, I had a mousemat but it was brightly coloured and they mess with optical mice. Does anyone have any solutions as to why it's not working? It's connected via my USB, but I have a connector that I can plug into the mouse slot and plug the mouse into that.