Wireless Mighty Mouse Not Syncing with iMac

[powerhouse7]

On occasion my Wireless Mighty Mouse, that is paired with my iMac, doesn't sync. It most often occurs when i turn on my computer and then turn on my mouse after startup. When this happens, my iMac stops listing my mouse as a paired device and in order to get it to work, i have to plug in a wired mouse and resync the might mouse.
I'm using a white 5,1 iMac with Mac OS X Leopard 10.5.8. The problem has happened since I first bought the mouse on the christmas of 2008.

Does anybody know what might be causing this or how to fix the problem?
Any help would be most appreciated!
Thanks very much in advance

 

[cocky jeremy]

I've got no help to offer, but i can bump this thread by saying that mine occasionally drops, too. Sometimes it re-connects itself and other times i have to use my Logitech to disconnect, then re-connect again. (It still says connected but won't move)

 

[Hellhammer]

Don't switch off the wireless mouse, just keep it on. If it doesn't pair, switch it off (slide the thing up) and then turn it on again and wait if it connects

 

[powerhouse7]

I have of course tried the good old turn off then on trick, but to no avail. I think the issue is related to the fact that the OS doesn't 'remember' my mouse.