After installing SL yesterday on my iMac, after a few hours, my right/down arrows began "activating" and repeating. At first I thought it was only happening in Finder, but it just came out of sleep while in Safari and was repeating the Submarine echo like crazy. I've restarted and also unplugged the keyboard thinking maybe it just some random error, but nothing. The only "cure" seems to be actually tapping the down/right arrow keys while the glitch is happening. Any one else had this problem? Any suggestions or ideas? UPDATE: I'm in the middle of re-installing snow leopard and I used a hot corner to turn the monitor off and about 10 seconds in, the repeating key began again and monitor popped back on. wtf?!