white crash screen?

[starstreak]

ok, I don't know what is causing this. I have 10.9. And I had this issue before I upgraded to maverics. I would shut down the computer only to find it turned on at a later time on a white screen. Sometimes the mouse is on the screen, but nothing to click on, and no way to get out of the white screen without holding down the power button to shutdown.

I don't get the white screen while the computer is on. I only seem to see it when I shut down the computer. I do have multiple logins for my kids. I'm not 100% that my kids logout properly, but when I check the computer, it does seem to be shutdown.

Any ideas?

 

[xylitol]

see HociMan's comment(s):

https://discussions.apple.com/message/16211467#16211467

 

[starstreak]

So I while my screen goes black, it's not really shutdown, so after a while the white screen comes on?
If my kids aren't logging out does Mac not shutdown if users or online?

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I don't allow them to install anything and I have parental control turned on. I wonder if something to do with that.