timer.c error

OS=Solaris 9
Bind Version=9.2.3

This morning named daemon exited with the following error:

Bad 00 99:99:99.999 general: timer.c:407: unexpected error:
Bad 00 99:99:99.999 general: isc_time_now() failed: unexpected error
Bad 00 99:99:99.999 client: client 10.5.25.124#4521: setting timeout:
unexpected error
Bad 00 99:99:99.999 general: resolver.c:2310: unexpected error:
Bad 00 99:99:99.999 general: isc_time_nowplusinterval: unexpected error
Bad 00 99:99:99.999 general: timer.c:645: fatal error:
Bad 00 99:99:99.999 general: RUNTIME_CHECK(isc_time_now(&now) == 0)
failed
Bad 00 99:99:99.999 general: exiting (due to fatal error in library)
Any thoughts?

Thanks,
GE