When i started my computer up this morning it wouldnt detect my keyboard, so i restared with a new one picked in cause it wouldnt pick it up. After restarting it, my accounts are gone! And there is only "Other..." 
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Mac wont find my login accounts?
- Thread starter ^^ CoolMacLover
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That's very odd. The good news is that you're not alone.
I did some googling, and came upon this solution: http://ratgeek.com/blog/2011/4/14/mac-osx-login-usernames-are-missing-help.html
There's also this Apple Support Communities discussion that sounds like the same issue you're experiencing. https://discussions.apple.com/message/8053014?messageID=8053014
There doesn't appear to be a simple solution to this, I'm afraid. If you're uncomfortable following the steps in that article, a trip to the Genius Bar might be in order if you have an Apple Store nearby.
Let us know if that works. Good luck.
The good news is that you're not alone. I did some googling, and came upon this solution: http://ratgeek.com/blog/2011/4/14/mac-osx-login-usernames-are-missing-help.html
There's also this Apple Support Communities discussion that sounds like the same issue you're experiencing. https://discussions.apple.com/message/8053014?messageID=8053014
There doesn't appear to be a simple solution to this, I'm afraid. If you're uncomfortable following the steps in that article, a trip to the Genius Bar might be in order if you have an Apple Store nearby.
Let us know if that works. Good luck.