When you moved the music.cfg, click replace!
And, go into C:>>> Feralheart >> media > particles and delete any ending in _0, _1, and so on.
Also, try changing your rendering system to either OpenLG or Direct3D9.
Also make sure you put the map files into the correct places. When you import a map with anmea like default.fph, never replace.
If you don't want to lose everything when you reinstall, just save it to your desktop or another folder. You could get markings and items like the MM3 easily. I could PM you links if needed. :3
Make sure you reinstall the setup from this site!