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.

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