Macbook can't get past login screen, until then normal startup
Suddenly when I power up my MacBook OSX (10.4.11) I get normal chime, grey screen with apple and spinning gear, then blue screen, login window pops up, I enter login information (so far everything seems normal), laptop goes to blue screen for 2-3 minutes and then login window reappears. How do I get past this? Thank you.
MacBook, Mac OS X (10.4.11)