1728 Errors

Hello all. I’d like to get started using ASStudio to write GUIs for my applescripts. To start, I thought I would download and look at Apple’s Hello World example. Unfortunately, it doesn’t work. Nor do any applescript studio apps I download. I get errors like these

Can’t get (class butT) id 2 of window id 1. (-1728)

I have 10.2.5, the Dec 2002 developer tools, etc. Any help would be appreciated.

same tools here and all works fine… I’d try a fresh Dev Tools installation…