bluetooth not available?

My cousins 24" iMac C2D has a problem with bluetooth. It worked fine before, it is running mountain lion. Now it is saying bluetooth not available. I do not see anywhere to fix this or re enable this. Its not simply turned off, it just says not available.



How do I get this working again?

via ehMac.ca http://www.ehmac.ca/showthread.php?t=112361&goto=newpost