well, not much luck so far. os3.9 starts completely normal when I leave Iprefs out of the startup-sequence. when I start it from workbench, instant freeze of keyboard/mouse. no response when cdrom is inserted either.
increasing the stack didnt help. Ive checked setpatch and iprefs versions and made sure Im running the ones matthey mentioned. Ive tried applying those 'boing bag 3' patches, but I didnt find them very useful, to be honest.
tomorrow I will try using fastiprefs instead of iprefs. somehow I remember that was important back in the days. but I doubt it will do much, the iprefs of os3.9 is updated for a reason, I guess..
does anyone have some other ideas? for example, deleting the iprefs settings from env-archive?