Hey, guys! Recently I found a problem in my new pc (MB is MSI b85-g41). Usb Keyboard sometimes disconnects and reconnects randomly. That's very rare (may happen once in a day or once in a week). First, I thought that the bad connection is a cause of a problem (keyboard has a crappy conection with my two upper usb ports, don't know why, and looks like other usb devices connected to that 2 ports work fine). So I tried another keyboard, tried another ports, but still keyboard sometimes disconnects (only keyboard) according to UsbDeview. And when that happens, keyboard's lights are on (like num lock). I don't know what to think really, please help to find the answer, if you can. Thank you!