Hi Hannu I've tried the script directly on my Sun Testsystem without Apache (can't do that on the running production system :) and the same thing happens. Sun just freezes for all other Zope transactions. Is that different on a pcgi system? What do you use? Oliver P.S. The discussion about the hitting "stop" on the browser...I can just say that the once called process is always finished. There's no such thing as a break. I don't know the code-details but its quite obvious. What the display of the browser is concerned that has nothing to do with the original problem. The browser always tries to make the best of what he gets. After a "stop" he'll display what he has. It doesn't concern the browser if the server is still sending data. -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net