Linear Pan & Zoom

[txrider]

I have started using the Pan & Zoom feature on still images placed in the timeline in VS8, but noticed that when the video is rendered, the Pan & Zoom function seems to function faster at the beginning of the transition and slows down from there on.

I other words, I end up getting a fairly quick initial zoom and/or pan, followed by a more-or-less consistent speed remainder of the function.

Is there any way to make the entire function linear so it is the same speed throughout?