All I ever get is this message whenever I load a page

Video never even shows up on the page. I can't figure out how to solve this problem...

One thing that is likely to be messed up is your drver. You may need to manually go through and check each driver for updates. By "may need to" I mean you should do it first. IF you have no QuickTime driver, which is unlikely because Firefox is pretty good about getting updates on time, try to get the driver through Mozilla. You also should check to see if only this page is corrupt, or if you can play no QuickTime videos, old or new (try to find a page that will play QuickTime videos, then check the date of the last update. Ifthe date is old, you just need to update the driver.). If it is only that page, try to update your drivers. This is most likely it.

Please let me know if this works. Also let me know if it doesn't play videos even with Windoes media Player.

So did you ever install Quicktime?

Wouldn't this be a question for the Windows forums?

Nope. Should be in Misc Software and Utilities though. I'll move it.