Mark, the frame size set in the export animation options is user-defined at 640 x 920 for both x3d files. Is that the size you want? When I export the animations without making any changes at all, that is what I get, and if I double-click on the animated gifs they display at that size in both Firefox 11 and in Internet Explorer 9. They seem quite large to me and would dominate most screens. Indeed, my monitor is only 1360 x 768 so I cannot see the whole depth of either image at full size.

Both animations have a lot of dead space in the top third of the image that could be cropped off with a resulting image of about 640 x 640.

If they display too small for you or your customer, that may be down to the browser or tool being used to look at them, or the code that sets the display size for them within the web page? I am not into webpage design, and have no expertise in that area.

Mike