First at all i want to say hi everybody..hope my bad english can help you

I have solved the "green dots screen problem"..
I installed the XVID codec >"XviD-04102002-1 _ALPHA_"<, released on March 2, 2002

the green dots on screen gone after the instalation.. :D
if any body wants this version of XVID i can send you by e-mail

You need to do this steps:

1-remove the current XVID codec
2-Remove the DIVX 5.1 codec
3-Install the XVID codec (version 04102002-1)
4-Install again the DIVX 5.1 codec (if you want)