Where are the mime-types in Evolution 2.0

[William Hewitt]

I installed Fedora Rc3 and with it came Evolution 2.0..... The mime-
types definition seems to have disappeared and I am wondering where the
heck Evolution gets the mime-types.....
My only option now is to "Save as..." when I select an attachment..... 

Additionally, I'd like to modify the Nautilus mime-types.....

So, where are the files I need to modify to get this thing working
again.....

TIA

WPH