bah, ok i got it working, deleted the old screenmode.prefs and set it up to start in 1024 mode.
redrawing reaction guis seems painfully slow, mui guis draw up fine, but anything using reaction seems to draw everything incredibly slowly, also the original utilities/clock takes ages to draw, is this just a "feature" of uae or is there a setting im missing somewhere? i was expecting it to be wquicker than my old 040 system.