Instruct: Classify Amazon reviews into positive or negative sentiment
Query: USB problems

For a USB keyboard switcher, this seems awfully bad at switching USB keyboards / mice. The unit that I have is connected to a Linux box, an OSX box, and a Windows 7 box. The Windows 7 box will recognize the USB keyboard once, then upon switching back will complain that the USB device cannot be recognized. OSX will also work once, then never pick up the keyboard or mouse again. The Linux box is Command-line only, but does seem to recognize the keyboard properly on multiple takes.The buttons on top are fine and nice. And the screen switching is solid and effective, if predictably slow. I never could get the windows hotkey or keyboard-based switching to work, for some reason. Including all of the cables is a nice touch. Though what would be really nice is if it actually worked.It's going back. The unit I got at least just doesn't work as a USB switcher.