Simplistically, my problem is this:

I would like to be able to put a combo box on sheet 1 that will allow a user
to select a choice (the combo box should be populated with unique records
from sheet 2, column b). Once a choice has been selected, all matching
records from sheet 2 will be displayed on sheet 1.

If anyone can point me in the direction of a similar example I would be
grateful.
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Thanks,
MarkN