TextModel new text:'hello' ; openWithSpec

This opens a window with the text 'hello' and I can move the cursor with the
arrow keys (os: windows 7).

You are right, it works.

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Can you give a minimal example that does not work for you.

I use TextModel as a base class for my own text model (need it for RewriteTool, which I'm implementing). Anyway I found where problem was.��