I can drag the slider and play from anywhere but the first 4 seconds or so. If I play anywhere before 4 seconds it jumps to the end and stops. I can't find anyone else with similar problems on the web, and the miro support log is devoid of any useful information.
I've given up trying to work out what's going on and am looking for a new convertor. If anyone has any idea what's going on.. it would be nice to hear from you.