[Exim] internal error in 4.05 on FreeBSD

This just started happening in my Exim 4.05 system. I am doing live
tests with a couple of my domains and I qwatch the log files as I switch
from 3.36 to 4.05.

2002-06-27 21:44:42 17NfFc-000C6q-00 internal error:
store_reset(135077889) failed: pool=0       expand.c 3047

Is it bad? It happens every queue run...

thanks
Chad