XP may suck, but your mother puts it to shame.
I realise you are only 10 and have just turned on a computer for the first time, but that still doesn't detract from the fact that you are an idiot.
Eddy, it sounds like you have a corrupt registry entry that's causing it to not display "tree view".
ME is flaky at the best of times. The easiest way is to simply install ME over itself.
You won't lose any data as you are not formatting.
ME comes with basic Registry tools, but the above method is easier and more thorough in my opinion.
[url=********support.microsoft.com/kb/183887/EN-US/][b]HERE[/b] are the required steps if you choose this method.