I suck at this

Here is my problem
I log in into then administration and then it brings me to the administration menu where it has all the stuff like the modules,forums, weblinks. But when i click any of those it just logs me out. And when I try to log in again it does the same thing.

It doesn't show any error it just logs me off the admin when i try to click something in the admin section

Does anybody know what the problem is?


Thanks,