my mac stops at the log in screen

[alaaxx]

every time i've try to log-in to my mac account it won't log-in
i press on any account it won't log-in
the log-in screen ain't freeze or any something like that
it' works fine but it won't log-in at all
also i can log-in only in my Guest Account , that's only


i'm using (macbook white 13' - Mac os x Lion )

 

[Puevlo]

Try it in the safe boots. Also do your other accounts have passwords? Try resetting the password to nothing and see if it logs in that way. At least then you can try and work out whats going on.

 

[alaaxx]

i've tried to log-in Safe Mode but the same problem
also there is another account without password , but it's not working too