Running AmigaOS final (winUAE) in 1920x1080?
 

I bought AmigaOS 4.1 final classic for emulating in winUAE and managed to get it up and running, very sweet:)

There's one drawback. I can't seem to get its resolution higher than 1280x720 in full screen when choosing through the tool Screenmode. The option simply isn't there.

It's running with Picasso IV in emulation btw.

Thanks in advance for any insight!

Unfortunately, the emulation of the Picasso is the limiting factor here. OS3 has drivers for UAEGFX which means it can use any resolution available to Windows, but such drivers don't exist for OS4 so you're limited but the Picasso's capabilities, including 4MB of graphics RAM. Maybe choosing 16 or 8 bit instead of 24 might get you above 1280x720, but for 1920x1080 you'll need a card (emulated or not) of around Voodoo 3 standard at least.

Check 3.3 betas. (and read http://eab.abime.net/showthread.php?t=81146 too)

Both thanks for the feedback and I'll catch up on reading;)