Rendering Issue about pointools connect edition.

See as the video above, when I use dynamic interference to check the clash detection, then render the video with the quality setting anti-aliased, this issue will happen. As the preview shows, the video result and the pictures exported by the rendering process are the same. That is some certain frames are small. I tried to render them again, the small frames will keep the status as it was.

If I use the quality setting Standard, the video will be great, but if I need high quality video, how should I do? By the way, If I use the Standard setting to make a video, how to make the viewport bigger than 1024*768?

Regards

Koalar Q