Desktop won't show after switching mice

I was playing cs with my razer diamondback and I wasnt used to it, so I quit cs, unplugged my razer and plugged in my old logitech mouse. I pressed reset switch on my computer to restart because the mouse wasn't moving and when the computer booted back up, all I saw was the desktop background, no icons, no taskbar. When I try to run the desktop process through "new task" in task manager, nothing happens. I have restarted and powered the comp off and on, but still no luck. Any idea what may be causing the problem and how to get my desktop back? Thanks.