I've uploaded a swf file to my Google Pages account. I should be able to access this swf file directly by using e.g. (below urls don't work, they serve just as examples):
http://portfolio.googlepages.com/examples.swf

But instead it gives me that save dialog ("you have chosen to open examples.swf, which is a flash file... save/open as..."). When I try the same thing in Internet Explorers it works and opens the flash movie.

On other servers it works just fine, opening a swf file directly this way in Firefox. In fact, I've tried doing the same thing on my freewebs account e.g.:
http://portfolio.freewebs.com/examples.swf
and then I don't get this save dialog.

What could cause this behaviour?