I have imbedded a url in my PowerPoint presentation. When I click on the "url" actually a graphic within the presentation, the url being passed is not what has been set up. I surmise this because if I put the url into my prowser, it functions correctly. The problem seems to be that when I type the url into the browser, I am directed to a log in page. Once I log in I am automatically directed back to the original url I type in. This is as it should be. My problem is that the url being passed via PowerPoint again redirects me to the log in page, but once I log in takes me to a different url, in this case the home page, as if the url has been truncated.

I am using PowerPoint 2010, and the browser I'm using is FireFox. Help