A4000D "Native" OS?

[Flashlab]

I think you overestimated the 4000. Look at what ECS can do and what AGA can improve on that.

So no 24bit 800x600 screens, you need graphics card for that. Look here at what hardware was made for the Amiga.

[Flashlab]

You're welcome!

The Opalvision is listed on the Amiga Hardware site. It's under non-RTG cards. To have Workbench work in 24bit colours you need RTG (Picasso96 (P96) or Cybergraphics (CGX)). All cards that are supported in a RTG package are listed unhder the RTG graphics cards.

A graphics card will not only give more colours and higher resolutions but also more speed. I have such a card and I can't go back no more!

[Flashlab]

Check the About menu in Workbench. If it says 40.68 you've got 3.1. If it's lower 3.0.

[Flashlab]

Look here