SuSE 7.1 and BIND 8.2.3

Hi everyone, We're in the process of using BIND 8.2.3 on SuSE 7.1 (it's the out of the box version in 7.1). We have an odd problem with it. About once every two week it exits, leaving no error messages in the log. We are a bit at a loss as to the reason for this, and I wondered if anyone else had suffered from this and/or found out how to cure it. alan