Sometimes when i log into my iMac, for no apparent reason, my aluminum keyboard starts typing on it's own after i touch the first key....and it will keep doing it until i either restart the computer (by holding in the power button) or i shut off the keyboard. While logged in later on, it will start doing it again and sometimes that word accent options(ex, à, á etc)kick in too. After awhile i thought it was a sticky keyboard and replaced with a new one (not the magic keyboard though.) Then it started doing it again with the new one. It is very frustrating. Has anyone else had this problem? is there a way to fix it? After searching on the internet for fixes, i found firmware updates, but my keyboard was too new and didn't need the update.