Hi. I've been using PowerDirector 10 for abouth three weeks (graduated from Windows MovieMaker) and need it every day. I have Windows 7, input MP4 720p or 1080p into PD10 for WMV output. Rendered video is frozen on the first frame but audio is fine. Is there a very simple solution to this or if not, just abandon PD10? I do not know what a diagnostic file is. Thank you for any advice.