Signing on to my MAC after lost power in the house

I lost power in the house for about 15 seconds. Ever since then I am having trouble signing on to my Macbook.  First time I try the mac asks me for my password that doesn't work(it should). I shut down and try again.  The second time everything is fine.  Anyone having this problem?

Try creating a new account and signing into that ... if it doesn't exhibit the problem, then I'd say you have a corrupted preferences file somewhere.   You could try getting "applejack" (google it) and running that to attempt to locate any bad preference files and whatnot and clean them up (don't use auto mode, run each step individually and for the ones where you have the option to run a deep scan on specific users, make sure you have it check the user that you're having problems with).  Applejack is free.

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