Whenever i publish an AMV with AVI. files, the bottom of the screen is green and the top of the screen is squished like this.

I have been trying to fix it on my own for almost 8 months now and it's been driveing me completely insane!
I found out that WMV. files work fine when i publish them, So i tried to make the AVI. files into WMV. but the decoder i have dosent seem to work properly cause 1,000 errors pop up.
I have Windows Vista, and WMM 2.2 (Or whatever its called...)
Please help!