I've got a site that uses a relatively large number of objects. When I open a page that uses these objects extensively it doesn't report any time spent in the class files. Instead it reports almost the entire execution time being spent on one particular line in a header file included on every page. The line is as follows:

session_start();

The class description files are listed in the profiler window, but lines report 0ms. I'm positive my objects are using most of the execution time, but the profiler doesn't report it that way.

Any ideas?

I'm running version 5.6 of the IDE, DBG Listener version 3.6.9, and DBG version 3.6.7