Oracle Forms

Question is related to Oracle Apps OM

I have a button which should open the Quick Sales Order form when clicked

The Quick Sales Order Form looks corrupted, like all the texboxes are is jumbled the Main Tabs "Main and Others" are not visible on the Header part
and even the tabs on Line Detail level are not visible.

I used the following to open the quick Sales Order form

fnd_function.EXECUTE (function_name => 'ONT_OEXOETEL'
,open_flag => 'Y'
,session_flag => 'Y'
,other_params => 'HEADER_ID='
|| lv_header_id);

Every other Form like Order Summary or Sales Order Form open Correctly . only the Quick sales order is causing the problem.

Should I set some window properties or anything like that ?

Please let me know
Thanks