Sometimes a web page will kick out if you don;t have the newest version of Flash on your PC. I just witnessed this yesterday at work, one person attempting to view a page at a automotive dealer kept getting kicked out, I installed Flash because it was a Flashed based site and it was ok. I know a web developer who verified this today and he says that you can have a version of Flash on your pc but if it's required to be the newest sometimes the browser will quit.