I fixed it guys... I had accidently put some of the instructions for a hack into the code. I have a bad habit of not backing up files, because most hack i can breeze through. I learn a new lesson everyday huh...
Thanks for your replies!
I take a lot from this site and appreciate the things you guys can do. I wish I was more experienced in PHP and had some time to learn so I could make a few hacks. Maybe one day...