allvideo reloaded lightbox issues

[rickypwp1985]

I used the code
{mp4 popup="true" divid="didyou" width="500" height="300"}viintro{/mp4} {avrpopup type="lightbox" id="didyou"}<img src="untitled.jpg" border="0" width="300" height="266" />{/avrpopup}

and I always get a scroll bar on the video doesn't matter what video type of video format I use.
I also want it to autoplay any help would be great