And now, the REAL problem: When i open the "Extra -> Maps" window, and start playing with the planet maps (viewing different maps, moving the mouse over its features, resizing window, etc) it will cause the whole app to hang with a "system failure" window soon.. It happens everytime i do it, it's not coinsidencial.
When I ported DA3 to MorphOS I recall it had the same problem... it is fixed for MorphOS build but someone should compile DA3 for 68k again.
I have tried both 68k and WarpOS executables and to increase the stack. It doesn't help.
Though, you probably didn't try the latest version? DA III 5.8 doesn't support WarpUp anymore but fixes some bugs in return.