Hello Erel,
Thanks for your prompt reply. Your assurance that sender should have an initialized value, suggests that I should re-look at what I'm doing.
In the project concerned, all my Views: Labels, EditTexts, Spinners, CheckBoxes, etc are dynamically created at runtime, initialized and usable on the UI (tested and proven many times). All views are based on the contents of an XML file. All views are members of their "control type" array. Each view has a complex value for the tag. The entire view collection is spread out over 6 panels (also dynamically created).
The project is extremely complex in nature. I do not feel that creating a zip would help in this particular instance as "getting to grips" with the project would consume more time that working out why "sender" seems to be a null pointer.
However I will revert to small-time testing on a new dummy project. If I get the same error, I'll upload that project.
Again, my thanks for your support and re-assurance.
regards
SeaCay