Right shift key goes to desktop

keyboard

I have an imac running OS 10.8.2 with a bluetooth keyboard. I have had it for about 8 weeks. When I hit the right shift key, all the open windows run off the screen and I am looking at the desktop. When I hit it again, the windows come back. I have taken the batteries out of the keyboard and restored the keyboard shortcut defaults. I don't have a trackpad and nothing seems stuck. Suggestions?

Best Answer

Is this setting enabled?