Looping video in the game engine

Hi - I’ve been using this script and tutorial for displaying video in the game engine…

http://www.tutorialsforblender3d.com/Game_Engine/VideoTexture/VideoTexture_Movie_1.html

It is a bit old, but it still seams to be working…

but whenever the video loops, there’s a jump. And yesy, the video it’s self does loop smoothly!

you can check my files here: http://yogyog.org/wiki/doku.php?id=game_technology_against_cancer

Thanks in advance for your help.

i just noticed that not all video run well, also if apparently have the same format.(someone due a big lag and someother not run at all)
anyway 80% of video run well