Help! KMail crash

[David Corbin]

When I start kmail (1.3, I think)  It flashes at me before crashing. 
Here's stdout/err.---cut---
_KDE_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
kbuildsycoca running...
Id '1' was already in done-list!
Id '4' was already in done-list!
Id '5' was already in done-list!
Id '6' was already in done-list!
Id '7' was already in done-list!
Id '8' was already in done-list!
Id '9' was already in done-list!
Id '3.1-update-identities' was already in done-list!
Id '3.1-use-identity-uoids' was already in done-list!
Id '3.1-new-mail-notification' was already in done-list!
mcop warning: user defined signal handler found for SIG_PIPE, overriding
*** KMail got signal 11 (Crashing)
kio (KIOConnection): ERROR: Header read failed, errno=104
kio (KIOConnection): ERROR: Header has invalid size (-1)
Mutex destroy failure: Device or resource busy
---end---
Can someone pleast tell me how to fix this?  Is it a "bad" mail message in
my account?  How can I figure out which one?

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