It is not a known issue, but it may indicate a hardware problem.
Due to the way Access 97 polls the message query, your CPU usage will be
100%. If the processor is not getting adequate cooling (or if the power
supply is not up to the task), the machine will reboot. If you have a
Pentium IV with only the fan on the processor and the power supply fan,
consider adding a system fan to the case to see if additional airflow solves
the problem.