I have an album that I renamed at one point when I encoded it from FLAC to mp3 for transfer to my phone, to make identification easier, however now I want to change its name again, and no matter what I've tried, the media player app's library still displays the incorrect name. I've tried changing the mp3 metadata several times and even deleting and copying the files again. All media applications on my PC seem to recognise the new metadata, but the n900's media player does not. How do I change the album title to the correct one?

Rebooted already?

Yes, I've rebooted several times already.