Hi all, I have a problem with my Zope, he hangs unexpectly if i view a special Method which generates Diagrams with data from a PostgresDB. The data are selected by a timespan( default is 24 Hours ). The Method works as descripted bellow: First when i call foo, then the HTML-Code is rendered with some images-tags, which are generated by selects. The image tags are calling the method foo which returns image data. If i want my diagrams from 2001-06-01 5:00 to 2001-06-01 12:05 everything works fine. If i want my diagrams from 2001-06-01 5:00 to 2001-06-01 12:10 Zope hangs, no exception no log entry, Zope only hangs. If i want my diagrams from 2001-06-01 5:05 to 2001-06-01 12:10 which is the same timespan as example 1 Zope hangs too, no exception no log entry, Zope only hangs. If i view the postgres logs the nothing happens. Could anyone help me to find the problem or the place Zope is hanging thanks as P.S.: Exact the same problem occurs when i you another PostgresDA ????