For the record, can you give model# and firmware#?
Ha! Am i getting this right - you are saying that changing onSubmitButtonSelected to onSubmitButtonSelected1 fixes the problem - and changing it back makes it disappear?
(Best if you can do this as clean room experiment, i.e. repeating above - change only the name to literally onSubmitButtonSelected1 and try, then literally change only to onSubmitButtonSelected and try)
A reserved word would have caused syntax error, where a global function would've silently overridden yours.
