I have a scrollable wx.textcontrol widget that updates during the course of the program. Whenever the text is updated,the scrollbar resets to the top of the screen. I don't want that to happen, but I can't figure out how to stop it. Does any of you know?
Just keep track of the line that you are on/or has been updated and call EnsureVisible on the text control.  (Also ensure you are using Append rather than Set to add new text).
Correction, (now I have access to the help files), I was getting mixed up with MakeCellVisible from Grid controls:
YourTextCtrl.ShowPositon(YourTextCtrl.GetLastPosition()) should do the job nicely.
Even better if you call SetInsertionPointEnd() on your text control before the text is inserted, (by using WriteText), then your problem goes away.
Scroll bar problems