yeah, i sometimes press fn instead of control, and it messes up my micro. haha
but in a related question, how do you get it so that f1 - f3 selects your heroes likes its supposed to? i'm on a whitebook and it ends up dimming/brightening my screen or muting my sound. even fn + f1 doesn't do it.
Strangely enough, I had this happen to me as well. The problem is caused by the hotkeys for Spaces (multiple desktop). Check it's settings in the System Preferences under Exposé & Spaces. Ctrl-1-4 swaps between desktops. It's the "To switch directly to a space" option at the bottom.