Can't log into my MacPro user account
This isn't a permanent solution, BUT it will let you recover your files. 


Login to your Admin account
Open Terminal
Type chmod -R 777 /Users/username/
Go to the directory that your user folders are stored in (/Users/)
Retrieve any files needed just using Finder.
Delete user account.


Or


Login to your Admin Account
Open System Preferences
Click Users &amp; Groups
Click reset password on the user. 
Change password.