> Anyway, according to the serial number, it's an early 2006 iMac:
That's odd... According to Mactracker, the 17 & 20" Early 2006 iMacs are iMac4.1, not iMac5.2.
Anyway, what has happened is beyond my ability to even guess at.
Edit: "Vintage" is Apple's classification; parts may be difficult to come by if needed.
Have you tried totally powering down, i.e. taking the batteries out of, the keyboard and mouse and starting from scratch?
And have you looked to see what System Profiler has to say about Bluetooth?
Last edited by artie505; 03/19/15 05:41 PM.
