Can't save changes after editing file

I choose editing in Files section. Then i edit some file. After pushing "Save" button it tries to download changed file - but not to save my changes to it. Is it normal?

That's definitely not normal. What browser/OS are you using?

Firefox 3.6 on Windows XP. Actually, i face this problem only here. On other machines(linux) it is OK. So the problem should be really with browser/OS.

Thanks for the reply! I think I've got it. We changed some of our JavaScript recently, and it looks like for some reason certain versions of Firefox cache the old JS. If this is the problem, then if you clear all cached data for in your browser settings, it should start working again.