Hi, Can anybody help me to solve this problem? After recataloging the whole web site, I found a very strange problem: it takes about 10 seconds to access a page that may be dynamically generated by DTML methods using catalog. But it is very fast if you just access a static page in the same site by giving url directly. So I guess it is caused by catalog. I search the list for an answer, but I still don't know how to solve it. My zope server is old, it is 2.4. I think upgrading the version is not a choice for me because the server is controled by others, not our group. In addition, some zope concepts confused me. For example, our server actually hosts websites that are developed and maintained by different groups. And each group just manage its own folder. I think zope is better for this model. But when one group uses Zclass, they have to put their own zclass product in the control panel which needs administrative right. Is that weird? If i need to fix the bug in these zclass products, i have to have the right to access the root folder ( the whole zope ) so I can also change the contents belonging to other groups. Why do we put such constraints (zclass in contrl panel)? Why not create control panel for each folder and let each group has it s own private zclass product? Maybe I'm wrong. Thanks. __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html