@fitzsteve:
I had this problem with a demo I was running which had RTG support.
It looked for very specific screen modes & if it didnt find them (not defined in Prefs), it used a 320x240 window on the upper left corner of the screen.
Adding the screen mode it required (320x240 60Hz 8bit) fixed this problem![]()
Thats not the problem here, he needs to add the width/height to the icon tool types or run from shell with them, this is from readme:
Resolution
==========
The default resolution for ADoomPPC is 320x200 and is the fastest
resolution to run in. If you have more CPU power than you know
what to do with, you can run ADoomPPC in higher resolutions by
using the -width & -height options. E.G.,
ADoomPPC -width 640 -height 480
runs ADoomPPC in 640x480 resolution; select a 640x480 display
mode when the ASL screenmode requester appears.
The resolution must be a multiple of 64 for AGA graphics, and
32 for graphics cards.
Pressing F5 toggles between high detail and low detail in any
resolution.
The maximum resolution is 1600x1280. Don't bother unless you
have a 275MHz G3 PPC.
i.e you have to do that *and* choose the screen mode requester, or you get a 320x200 screen within 640x480 that you chose from the requester...