None of my art is inside files and they all work fine with gforce...
BUT:
I have noticed that gforce does not like hi-res images. I've never bothered to chase it down precisely, but can tell you that it refused to display art that was 1400 x 1400, and after I'd resized it to 999 x 999 gforce quite happily displayed the artwork.
bilbo, perhaps that's something you could test at your end? If you find you have the same experience, it could help you when it comes to dealing with Soundspectrum.
If I remove a cover from the next file to play, G-Force will display the MC icon
Rick, I only have a handful of albums without art here, and I've noticed that when GForce displays the MC logo for those tracks, there is a little square box in the top right and bottom left corners of the logo, makes it look ugly, like there's chunks missing out of it...
Does GForce display the logo correctly for you?
Regards,
-marko.