I played the download version - it had no graphical problems, but it runs in a window - is the display problem in the online version?
I could not beat level 5, so I cheated with levels.ini to get past it.
Enjoyed puzzling my way through the levels after that.
Bug: On level 13 the music stopped and was replaced with a looping sound (the sound the tractor-bots make while moving?) This sound continues instead of music even back on the level selection screen.
I stopped on level 13 after trying a few times - I guess I wanted a break from thinking
I love the flash of light across the main robot's face when its head turns from side to side. And other little animated touches like the ceiling fans.