On Jun 13, 2012, at 11:22 AM, Paul Moortgat wrote: > A friend his keyboard is no longer recognized by his iMac. He > changed batteries (even backwards) > The Sys Prefs tell him there's no keyboard. What can he do? He > works with Lion. Shutdown your Mac and then unplug it and let it sit for five or ten minutes. This will reset the SMC. Plug it back in and startup. Everything should be back to normal. More suggestions: <http://ismashphone.com/2011/08/how-to-fix-bluetooth-pairing-in-mac- os-x-lion-issues.html> ___________________________________________ Randy B. Singer Co-author of The Macintosh Bible (4th, 5th, and 6th editions) Macintosh OS X Routine Maintenance http://www.macattorney.com/ts.html ___________________________________________