When you first activate the internal editor, say by double clicking a
note in the outline tree, the cursor should be placed in the display
panel and the left-hand border of the display panel should turn green.
Does this happen?
The first time you do something to modify the content of the note, say
by deleting a character, the left-hand border of the display panel
should turn orange to indicate that you have modified the content of
the note. Does this happen?
When you say that the cursor doesn't want to go to the end of the
line, do you mean that if the cursor is in a line and you repeatedly
press the right arrow key, that the cursor stops before the end of the
line and then doesn't move, or that it jumps to the next line without
ever reaching the end of the current line or what?
How does pressing the space bar help? It should just insert space
characters into the current position of the cursor and move the rest
of the current line further to the right. If you have selected
(highlighted) some text, say by holding down the shift key and
pressing the arrow key several times and then press the spacebar then
the selected text should be replaced by a space character.
Can you place the cursor at the end of a line that you couldn't reach
with the arrow key by using the mouse?