Anyone got a keyboard problem on a 2010 (week8) Imac ? It just stops writing at least twice a day - only solution is reboot. The keyboard is NOT wi-fi. After sales just told me to disconnect everything then re-connect. Also I started seeing white (transparent) stars appear on my 27" screen - thought hey were inside, but they were actually outside. Wiped the screen clean, but more appeared - wiped again, and at this time nothing more has appeared.... Anyone got similar hitches ?