iPhone showing multiple entries for the same album after sync

recently I got a 3Gs and loaded it up with my old 3G backup. All the music was gone. No biggie, i just re-added it all. Then i upgraded to 3.1 and i noticed that in my iPod on the iPhone some of my albums were showing up as multiple entries. The difference is, it seems it would make a new album entry for every artist on the album.

It's annoying because I used to just have one album but now its like 15 entries and i have to scroll through them all when they should all fall under that same album.

WTF 3.1

 

nobody?