[Solved] Bug on Resize and Zoom Effect

Good evening every body,

I am encountering an annoying problem with KdenLive 0.7.8 and the effect "Resize and zoom"
(Redimensionner et zoomer in french)

I'll try to upload 2 picture to illustrate,
In fact on the timeline I would like to have my picture at 100% zoom so that it fits the screen, and then zoom in to get a detail of the video.
Using the effect I put 2 time marker on the effect properties with 100% zoom for the first one, X=0 Y=0
And the second marker has X=-1300 Y=-1300 and zoom 500%

Kdenlive is then interpolating from those coordinates and it's bugging there (2 or 3 times for 0,01s each time, in the project monitor and in the rendered video as well.

Here are the screenshots :
Buggy :

http://img99.imageshack.us/i/cran1k.png/

Not Buggy :

http://img203.imageshack.us/i/cran2r.png/

The original image is a Jpeg, 2816x2112 pixels...

I'm working on the last Kubuntu version (10.10) 32 bits

Thank you for your help.

(maybe there's another way to do the zoom in effect?)