Some Flash SWF files not loading at my server

EDIT: See my comment.开发者_C百科

Hello.

I just saw that some (only some) flash files (games) aren't loading in my website, but are in other servers. Most of the files do work.

For example:

(External) http://jogolandia.uol.com.br/arquivos/games/sokobones.swf

(My Server) http://www.plugb.com/files/games/sokobones.swf

It is the same file, but doesn't load at my server.

Any idea why?

Thanks.

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It looks like there may be several Security Sandbox Violations looking at my trace output.