I am running octave 4.0.2 on windows 7 64 bit vm hosted on a mac with El Capitan in Parallels Desktop.
I have a Thunderbolt display with the resolution 2560x1440.
When I make the main Octave GUI window bigger than a certain size, the command window starts to flash and it displays all sorts of garbage characters. I attached a screenshot I took while the command window was flashing. It seems that a threshold for the command window is approximately 1320x965 including scrollbars, i.e. when the command window becomes bigger, it starts flashing garbage characters. The window is sensitive to increasing either the width or height. Also, if the width is smaller, it will start flashing a higher height.
Any ideas on how to fix this and what might cause it?
Update: I posted this: http://savannah.gnu.org/bugs/index.php?47893
This issue is a bug in the software: http://savannah.gnu.org/bugs/?45220.