kinda odd that it redirects you back to 1st page in both Firefox and IE- my 1st thought is that it is something in your Opanel settings- but i can't imagine there is an option in those settings that would cause that...
My next guess and probably the most likely is that you have a toolbar or multiple toolbars installed in your browsers and their built in pop-up blockers and other so-called security features are causing this.
It's doubtful that helped but i figured was worth mentioning- hopefully some1 else has the answer u seek