@Desolator
Yep 800x600 is possible with DBLNTSC monitor
added into your Monitor drawer and connected to
a VGA monitor. Thats interlaced at a 30Hz refresh rate.
I wouldn't try DBLPAL interlaced though, thats 25Hz refresh rate which is far too low for the human eye
on computer style images ( but is OK for movie images and graphical stills ).
But the later cost in life of stronger eyeglasses probably isnt worth it and would pay for a busboard and a GFX card...