custom controller not displaying first time called

Just up-graded to
Version R2 2.1-build 310
Java version 1.4.2_04-b05 (Windows 2000)
when I call a particular list form with a custom controller, the controller is not displayed. If I move to another form and then back to the original form, the controller is then displayed as it should, and is displayed correctly on subsequent calls.
If I start off with a different form (that custom controller is displayed correctly) and then move to the “problem” form it’s custom controller is not displayed- the custom controller from the different form remains on the screen. The custom controller for the “problem” form is only shown when it is re-drawn based on some activity initiated by a method from the problem form.

Dennis

Could you pls reproduce this in a sample solution, we have not seen this problem so far.

I think the problem is related to initialSort form parameter: if I leave it out, the controller displays the way it should, if I set it, controller fails the first time Developer launcehs the solution.