Now that you ran a repair the option of using system restore is now not possible.
At this point you copy your files out (we've discussed this on these boards) and reinstall the OS.
After a day of work we shut down system fine. We had to turn system a short while later and it went to a login screen. We don't have multiple users so this was odd for us. Whe we selected the user it starts to log in and immediately logs out and will not let me gain access to computer. Tried safe mode and it does same thing. Tried repair option on the install level of the cd nothing works. Any help will be great.