BIND Crashes

[Ken Harford]

Hi,
     We have a Solaris 9 Sun-Fire-V240 system  with 2GB of memory  running 
BIND 9.2.3.

Every so often named crashes with this error message: "dispatch.c:1903: 
REQUIRE(res->item_out == isc_boolean_true)...   exiting (due to assertion 
failure)"

Is there a solution to this?

Thanks
Ken