I have installed Morrowind but when I try to boot it up it comes up with the menu (play, data files, options, etc.) but when I click play nothing happens. I think it might be because I'm running windows 7. My computer meets all the other minimum requirements. What should I do?

The sticky threads have information on the problems with 7. The simplest solution is not to have your install in Program Files (or better yet, not on the C drive). If you have a Games folder somewhere else, you should move it into that. You can cut and paste the Morrowind folder and it should work.