It sounds like the Skorcard website isn't optimized for browsers other than IE, this usually causes this issue. Used to make it near impossible for me to login to the old forums because it'd just reset to the login screen after putting in my info and pressing enter.
Oh, I can tell you that I'm pretty-much around to MAKE SURE that they're NOT optomized for IE!
If prob's with IE: It's probably one of those obtuse Security settings within the Internet Options control panel....
Either browser: Another possibility is that you're getting bit by some caching: Try holding down the <SHIFT> key (Firefox) or <CTRL> (IE) and while clicking on the RELOAD icon for the banners page - after every change yopu make to it. (This gets a 'fresh" page and bypasses ALL caching between you and the server.)
(Missed refreshes on the banners page has always been a problem with skorcard, BTW. That was supposed to be fixed by the addition of the "Submit" button at the bottom. 'Guess NOT, eh?!?)