Windows key killer from http://johnhaller.com/jh/useful_stuff/disable_windows_key/
I've had this computer for a couple of years. It's an eMachine running XP Home. This is a new problem. Sometimes when I'm typing really fast, I'll hit some combination of keys in the Shift/Z/X/C/Ctrl/Windows key/Alt area (I'm typing too fast for me to figure out what I've done) and my keyboard changes so that the letters on the keys don't match the letters that type out. It's not like the whole alphabet gets scrambled -- some letters are missing and some are duplicated. I haven't checked to see whether the keys are always switched to the same letters -- I think so.
To fix it, all I have to do is close OE and open it again, so at least I'm not facing a reboot.
OE and I have never gotten along. Does anyone know what combination of keys causes this so I can avoid it?