Having set the Work Area to a smaller time range is a classical misstake, but havn’t done that. And I get no error messages. AE just stop and in Windows XP i can find tha AE doesn’t answer. It totaly shuts down. And I have also tried to use another computer with two diffrent AE projects och compositions. Either there is a preference in AE or there is a preference in Windows XP that I don’t know of.