Last night, all was normal. This morning, mighty mouse lost connection, in spite of 75% battery. So I try to connect it again. Sys Pref, Hardware, Keyboard and Mouse. Weird... Mouse has disappeared. So I wondered if anything had happened to Bluetooth... Bluetooth disconnected. OK. So far, so good.

Back to Sys Pref, network, Bluetooth. No matter how hard I click on connect.... It just won't. All I get is this message:

"The selected communication device does not exist. Please verify your settings and try again."
HELP!!!!! Life without a mouse is not Life anymore....

Thanks guys