No Bluetooth mouse at startup

I have an IMac which, for some unknown reason, insist on the use of a mouse bluetooth at startup.

I don't have a bluetooth mouse! The consequence of this is that I can not connect to the machine more.

How can I start the machine so that I can fix the problem?

How can I avoid this problem in the future?

Connect a wired mouse.  If it does not, restart in Safe Modeand see if it works as expected and then try to start normally.  If that doesn't work, reset the PRAM and - if this fails, try to Reset the SMC.   Then... donno.

Tags: Mac OS & System Software

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    http://forums.Logitech.com/T5/mice-and-pointing-devices/V470-not-working/TD-p/551070

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    http://Logitech-en-AMR.custhelp.com/app/answers/detail/A_ID/20491/kW/connection%20V470

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