If I select some text (like a variable name) in the script editor window, then start typing a new name, the first character types over the selection, then the rest of the characters start typing at the beginning (top left) of the script. the text cursor just suddenly jumps up there when typing over.
In general it would be really helpful if the code editor had some other simple features, like correct indentation and function closing etc.
Or a simple check box that says, link external script, (and a browse dialog) so we can easily edit and write our scripts in our chosen editor.
(rather than the complex method ive seen on the forums)