<PARAM NAME=movie VALUE="f_mesh.swf"
<EMBED SRC="mesh.swf"

yes, the filename is defined in two different ways. some browsers and flash plugins seem to use the first one and some the second one which is wrong.

in IE it still works and the last time i checked with firefox (but that was a long time ago so maybe i don't remember it correctly) it worked too but now it doesn't anymore.