so far i have 7 reports of stuttering movement and only 3 where it looked like a good movement...

i think i can narrow it down to happen with objects(no matter if model, sprite...) in window mode, that are moving at a constant speed and where a static camera is looking at.
it doesnt seem to have to do with time_step at all, because if i move an object with

my.x += 5;

for example in the above code, i get the same stuttering result.
so please test it too and post the results, maybe you find a way to get rid of this strange effect?
for me this concludes that right now i'm unable to make any game that includes objects moving at constant speed in window mode.
but providing window mode to players is essential.

if more could test here, i could make a new thread and ask conitec about this.
thanks