a lot of memory inuse

Hi Guys, I have free radius 2.1.6, and it has quite a chunk of memory inuse at the moment, are there any known issues with this version and memory leaks? It's running on CentOS 4.7 32 bit, compiled with this version of MySQL 5.0.20a-0.rhel4 (which isn't standard on CentOS 4.7). I started with this source rpm freeradius-2.1.6-2.fc10.src.rpm And has handled 430,000 requests since it started approx one month ago. Regards Mark Strong