So a few games (Battle Isle, Dune, Monkey Island) needs to be booted into ECS mode from the early boot menu (when holding down both mouse buttons)
But after I've installed 3.9, this no longer seems to work. Am I hosed or is there another way to do it?
For me it works as expected. The ROM update reboots the Amiga and you have to change the boot options after each reboot. So you have to wait until the ROM update is active and only then hold down both mouse buttons. You can see that the ROM update is active by the fact that the new options Double PAL and Double NTSC are available in the Display Options of the boot menu.
