I can't load any fonts to my fontbook - any suggestions

Yea, I have rights on all of them they are in the system library. I pulled a free font off of dafont.com just to double check on loading a font that wasn't already on the computer. That is the one I double clicked on like you asked. When I do it bring up the install font box, I hit install and then fontbook will spool for a minute and then nothing. It looks just like it did before doing anything.

Thank you for the links, I have read all that. I know you don't load into the system. My problem is I can't get any fonts to load into the fontbook. Can you load fonts into the fontbook from the system fonts? I have a user font library also that has a little over 100 font but I can't even get them to load. Even a brand new free font from dafont won't load. Is there a lock that could have been applied to the fontbook? I really appreciate you trying to help me.

That is what it looks like. The font are just not showing up in fontbook. I went into Text Edit and they seem to be there. What would you suggest me doing now. Is my fontbook bad? Can I throw it in the trash? I have co-worker who has put her whole fontbook into a folder and sent to me, I just dont want to do anything with until I know it won't mess anything else up.

Ok, did that, reopened fontbook. Tried to load a new font and same thing happens. Do I need to place that file back where I got it?

The fontbook works in the other account. What would be wrong with it in this account? Are there locks that can be placed on it?

Ok, remember that I am computer stupid. When I go to Library/Caches/com.apple.ATS/ the next folders are 501 or system not 50x. Am I doing something wrong? Or is this wrong.

It still does the same thing. It spools and acts like it is downloading then nothing. Right back to where it started. Do I need to place that 501 folder back ink the caches?