IDE Published SWFs won't play in release player

I’m not sure when this started, but when I publish any movie (fp9 or fp10) in the IDE, my SWFs aren’t appearing in my browsers (release player 10,1,102,64) ONLY WHEN I’m viewing the swf/html that are on my web server. I can view the local SWF/html if I open those files locally in the browser?

I’m on a Mac and I’ve deleted all my Flash CS4 preferences. Anyone familiar with this problem? I really don’t want to reinstall Flash if anyone has ideas. Thanks.