[Evolution] "Storing Folder" stalling Evolution

[jim <cinetron passport ca>]

I've been having trouble with Evolution lately. It seems to be "storing
folders" every time I check my mail and this takes a long time, locking
me out from doing anything else in the program. I tried deleting and
rebuilding a number of files including all files of type:
.cmeta
.ibex.index
.ibex.index.data
.ev-summary
.folders.db

Can anyone recommend a way to fix this? I am using 2.32.2 in Natty
Narwhal.
Thanks,
Jim