My question on my hp Compaq nc6120 is that whenever I plug a flash drive on my usb port.my laptop got freezed it had 4 USB port,I had tried using the flash drive on each of the ports a[color=#000099][/color]s I had said earlier my laptop free[b][/b]ze and the flash drive is working I had tried the flash drive on a different laptop and it worked.my operating system is Ubuntu it was installed on my hard disk,I think may be the usb ports are corrupt.what do you think?[b][/b]