Reference:Jenstar
I also get the hiding cursor when trying to compile a message (this doe not occur every time) but it is easily fixed by dragging/moving the reply box on the screen, then clicking back inside the r ply box. hey presto it reappears.
You are completely right - moving the reply box, then clicking back in the reply box does bring back the cursor.But it shouldn't be necessary to have to do that, so my posting still stands.