Problem with web page counters in IIS 5

I have recently updated my network with a a new PIX firewall and placed my web server in the DMZ zone. The web server was placed on a new server with a basic Win 2K build. I have placed all security hot fixes and servers packs on the server to date.
The problem I am encounting is that every time the web site is updated I loose the counters and the forms quit working. When I go to the IIS manager and recalculate the pages and have it check the front page extensions they start working again. I have trolled the Microsoft web sight and found no answers. Any ideas has to take care of this annoying problem

Thanks in advance