Andrew... my "issue" with file names is back. Even though I'm running 2.1.6 After I upload a file, it works for a while if you right-click save as, but then after a little bit of time passes, you right click save as, and it reverts to the "protected name" with all numbers. What's even more confusing, is that it only happens with some files, not all of them. In order to see it, you'll have to sign up on the site, and I'll give you access to the members downloads, then you'll see some of them save as the wrong names, some don't.
www.limmac.org