N97 music player doesn't display my music

Question

Hi all,
I have a problem since yesterday regarding the music player application on my N97. Namely, it will not display any of my music - it displays "no songs" for whatever section (Artists, Albums, etc.). Of course, I checked the file system and all music is there, safe and sound. It should be noted that the music files are in .mp3 or  .m4a format, placed appropriately (mass storage, folder "Music"). And I hadn't had this sort of problem until yesterday, when I was trying to sync music with my PC using Ovi Player and Ovi Suite. They both recognize my music files and display all albums and songs accordingly.
To make it more interesting, when I choose "Music library details" option in the music library main screen, it displays the correct information (1490 songs, modified 26.11. etc.), but it simply won't list any music saying that I have none!
What I tried:
- refreshing the library a number of times - it reports "0 files added" and continues to behave in the same way;
- importing some new music (via PC) and refreshing the library - the same outcome;
- switching phone off and on (including removing the battery);
- resetting the phone to factory settings.
Nothing helped. It's running the newest firmware version (v20).
In my opinion, the problem is not caused by the music files, but the music player application itself. So I don't think that formatting the mass storage would do the trick. Someone correct me if I'm mistaking.
Also, I would very much like not having to reinstall the firmware as it was excruciating in the first place - lost connection with the device, my phone almost died, etc. But if anyone strongly thinks that it is worth trying, then I will. This is extremely annoying.

Answer 1

ok i found the solution here by deleting the corrupted library
http://portablevideo.blogspot.com/2008/12/music-player-database-problems.html 
now one of these below is for the music and one for the photos and i didnt have a problem with the photos but did it anyways and now the player can see my music:
these are the files that need deleting in order to get rid of the corrupted library.
Storage Drives: (Mass storage E, Memory Card F)
\private\101ffca9\harvesterdbvx_x.dat
\private\10281e17\[string]mpxvx_x.db
\private\10281e17\[string]pcvx_x.db 
TIP: Connect the device in USB mass storage mode (File Transfer), to locate the private folder from the PC.
TIP: STRING and x_x will change depending on your phone. (my files had slightly different names than above on the n97)