iPhone music showing up as 'other' in iTunes ... unable to delete !!! help!

[mgpg89]

I'm syncing 20GB of my iTunes music to my iPhone, but as of last night, that music shows up as 'other' in the iTunes device section.

When I go into the iPod.app on my iPhone, it says there's no music on my device.

And I can't re-sync my music because it says there's not enough space available on the device ... How can I delete this 20GB of 'other' stuff?

(Oh, and it would be great not to lose all my apps' settings/saves/progress etc)

Thanks in advance!

[rmorgan56]

iTunes shows 10.6 GB of "Other." iTunes also shows all playlists, songs, and podcasts, none of which show up under "Music" or "Videos" on iPhone.

+1 on the thanks in advance.