EXS 24 Logic Sampler Users Group

This what fixed the (EXS GUI) for me...

OS9.2  LAP 5.5

First of all I trashed Logics Preferences...

That didn't do it... Though it may for you

Then I opened LOGIC 5.3... Aha !!!  EXS Gui is there

Re-install 5.5 over the top... FIXED.

cheers
paul