[Evolution] Evolution can't empty trash

["Richard E Hagelstein Jr." <rhagel1 rcabletv com>]

Hello,
I am getting 50 or so junk emails a day (don't know why).  My Evolution
can't expunge the trash.  I get an error.  The error box says there's a
mismatch somewhere.  So these junk emails are rapidly filling my hard
drive, and I can't delete them. Any ideas??
Richard