some Kind of error ? :<

Well today I got my new pc, after not having one for a really looong time.

I installed ET (+patches) but when I want to enter a server I get this error*


RESTRICTION: Inadequate O/S Privileges

http://img208.imageshack.us/my.php?image=eterrorsr1.jpg (screenshot)

After updating pb, I got this error :

http://img208.imageshack.us/my.php?image=eterror2kw6.jpg

Does anyone know wath it is and how to fix it?:(

(btw, sorry for jusing imgeshack)