Thread:Project:Support desk/Error 404

I am facing a strange problem with our mediawiki. I enabled certain file extensions, as Matlab files (*.m). However, while users can upload these files without problems, it is not possible to download/view them. "404 File not found" error occurs.

Funny thing is, that I can access the files when I login to the webserver and go into the respective folder under wiki/images/... The user rights are set correctly to all subfolders of images. And it works with all other files in there, like jpg, png, pdf, doc, xls etc... What's wrong? Any ideas?