Fade Effect Issue

Hi everyone, hope you can help.

I am using the Fade animation a lot on my course objects and hoping to publish to CD for the final export.

However I have found that when the object fades, it moves a pixel or two from its original location which doesn't look very good. I have uploaded the CD publish export to show you this issue. It doesn't however appear to be so much of a problem with the web export, although it has given me the same problem now and again. It also doesn't seem to be an issue with the other animation effects (wipe etc), only the fade but this is the one that i need.

Any help I will really appreciate thankyou!