Adminstrator Problems

[Jesse Kruger]

Over the past 2 days or so, many programs on my computer
seem to have stopped working. They all seem to say that I
can't use them because I'm not an Administrator, but I
am. My account is set to Computer Adminstrator, and
always has been, and they all seemed to work fine before.
Kazaa Lite stopped working, MSN Messenger stopped
working, and Internet Exporer hasn't been working
properly either. Any suggestions on how I could fix this
problem?