Thanks for reply.

Yes, I use a long line in the example to illustrate the problem. In my app I have several long lines, with variable lenghts, that are inserted into the text widget. When I scroll up and down the scrollbar resizes itself, going from small to big, back and forth.. It doesn't look very nice at all :/.. If I start splitting the text I loose the orginal formatting of the text, which will cause problems cos I copy the text from another widget and display it in a small toplevel "popup window" with a text widget - which is then going to be edited and inserted back into the orginal widget when the toplevel window closes.

It's a damn shame the scrollbars behave like this.. Can't see the logic in why they should resize themselves according to the fraction of lines shown..

Well, It's normal procedure again I guess. 30 minutes to get the basic Tk functionality up and running, then 3 days to work around all the anomalies :(