Mac OSX
Only I (the Admin) can download mp3 files. I tracked the problem down to two bugs. Both reproducable on three different Macs.

Bug 1
1. log into a non Admin user
2. open options dialog
3. set the download save location to the iTunes Music folder located in the users Document folder
4. save the options dialog
5. quick LimeWire
6. Open LimeWire
7. open options dialog
8. the download save location you set in step 3 wasn't saved

bug 2
You can only download mp3 files if the download save loaction is in a users local folder as in step 3 above. The shared folder in LimeWire will NOT work. Because of bug 1 and this bug, the only way to download files is to reset the save loacation every time you start LimeWire.

are you quitting limewire from the menu bar at the top of the screen or are you quitting limewire from the "close" option provided by the menu bar on the application itself. you need to use the menu bar from the application itself to save your settings.

I've tried to close the app both ways. If I change the options while I'm loged in there saved OK. They just don't save for the other users.

Maybe the owner/permissions of the limewire.props file doesn't include the user accounts? This file contains the Options settings.