Forms 10.1.2.0.2: Web Form does not appear at Runtime with CALL_FORM

Question

Hello there,
We have a number of forms we're executing as web forms using Oracle JInitiator 1.3.1.22. We have one form in particular that, when a button is pressed, is supposed to call another form via the CALL_FORM built-in.
We are passing a parameter list to the new form, and executing the CALL_FORM built-in with these Setting Parameters:
CALL_FORM( formmodule_name => '<OUR_FORM_NAME>',
           display         => NO_HIDE,
           switch_menu     => NO_REPLACE,
           query_mode      => NO_QUERY_ONLY );When we run the starting form as a web form (via JInitiator 1.3.1.22), and press the button to call the other form, all buttons on the starting form are greyed-out/disabled. The called form does not appear.
I have carried out a number of checks with my own debugging tool (stored procedure writing messages to a table via an autonomous transaction), and forms focus is definitely been transferred to the called form. For example, the WHEN-NEW-FORM-INSTANCE trigger in the called form is definitely being executed.
I suspect this problem is JVM-related rather than Forms-specific. My current plan of attack is to request the Application Server Logs tomorrow morning (I don't currently have access to them) and see if I can find any Java-related error messages. However, if any of you reading this have experience of this type of problem and can offer any assistance, please don't hesitate to let me know your suggestions/advice.
Cheers.
James

Answer 1

You could check the settings of the window in the calling form. If its set to "Modal" or "Dialog", and the window in the called form has other settings, the new window might be opened "behind" the old window.