Embedded Flash video issues

I'm having trouble viewing embedded Flash video on certain sites. Usually I can just click the blue play button on these, but it hasn't worked in Safari and Firefox for a few weeks now. I updated to the latest Flash, then repaired my permissions and it still doesn't work. I have to double-click and go to the actual site with the video to see it.

You might notice if you look quickly, you can see the blue play button in the video window for a split second before the page finishes loading.

http://forums.maxconsole.net/showthread.php?p=603307#post603307

I can view Youtube and Google Video fine.

Another issue I noticed is that when I play videos at Gametrailers.com, after playing one, the aspect ratio on the video window goes screwy and it seems to zoom in on the corner of the video.

 

Macbook with OS X 10.4.10, Safari 3.0.2, Firefox 2.0.0.5, Flash 9.0.47.

Here is a screenshot. It seems to stick at "Loading..."

Uninstalling and reinstalling Flash didn't work.

 

I think I found the problem, but I don't know how to solve it. There was one error in the Safari Activity window.

"http://mosii.gametrailers.com/crossdomain.xml - can't find host"

Another thing I found in a forum was the Quicktime System Preference has an Enable Flash checkbox, "Enables playback of Adobe Flash tracks." Checking it didn't do anything. I think that might be referring to standalone Flash files or something.

 

Possibly. I will wait awhile and see if it changes over time. Thanks. Perhaps they made a change in their server.

Edit: Works in Firefox on Windows XP SP2 in Boot Camp, so I'm guessing it's a Mac software/network compatibility issue.

My roommate's Macbook is having the same problem, so I'm guessing the recently-purchased router might have something to do with it. There are no blocked sites in the settings.

 

Hm, I just switched back to my old wired Netgear router and the videos are working now. Any idea on what setting in the wireless router could be causing that?