In response to screenmode Amibench wont let you select other modes, you click test and the message is "the test screen could not be opened"
I was able to set it to 1280x720.
I selected A600GS:1280x720x32 RGBA and clicked on use, it said something about screen mode has not been tested, I clicked OK and then it said Intuition could not update the screen until all windows were closed, I had to click on the calendar, clock and dock utilities and close each one in turn to allow it to update the screen but it worked perfectly.
Then I went back intro screen mode prefs and clicked on save, so AmiBench now boots in 1280x720 every time.
