Wow, this one was driving me crazy; then I had a Eureka moment!
My user was staying logged in between sessions. When I made that user a megamod, it was showing that I was a megamod, but I kept getting denied megamod privledges.
So I went to my forum, logged out, logged back in, and BAM, BABY!!! It works like a charm!
Thanks for helping me figure this one out, guys!