For some reason I can't click on anything, for example when I wanted to get to my song list on Limewire, I couldn't click on anything. But I could click on everything else. It's not only with Limewire though, it sometimes just happens to one random page, but then I can click on another page and it works fine. Please help me, thank you.

If this is a new problem try a system restore to a point prior to the problem:

start > All Programs > Accessories > System Tools > System Restore