Puppy is designed to let you select the resolution as you boot up.
I can select 1920X1080 with 16 or 24 bit color
When I select for nVidia gpu.. I get 1920X1080, but for any Ati 1800 or 1900 series I have tried... 1400X1050 results.
So even though I think I have settings ok.. something is not working.
Mike