There could be many things wrong with the code (which I cannot comment on because I don't see all of it). But a few points we can see:

• You are using $self = shift;, and you are not putting a my in front of it. That means you are using a global variable. If you do the same in SelectedItem or GetString you will get problems, as they will overwrite what is in $self.
• You are using $self as an index into an array. But $self is an object. If you use an object as a number, most of the time, you will get a pretty big number. Perl will happely extend the array @comboboxes for you, but you're likely to run out of memory before Perl has extended the array far enough.

Abigail

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