[Zope] server dies

I was wondering if anyone else had experienced this problem: Ever since we installed the ZPoPy database adapter, the server has been occasionally crashing, and it gets worse and worse over time. Has anyone else experienced this problem? We're running Zope through Apache, on a Solaris box, with PostgreSQL. I'm really curious as to what could be causing this behavior. I know that that adapter is still in development, but it seems like that would be non-desirable behavior :) If there is some way that our setup is causing this, any input would be appreciated. We are also still running the last stable release of Zope (2.1.6, I think) with plans to upgrade next week. Thanks.