output in DV-AVI (jerk or skip problem)

I export my project with MM2 in DV-AVI
then I create DVD after image quality is good
but somes regular jerk or skip appears !

Even I try convert the file to avoid interlacing problem
no possibility to suppress this problem.

Also I try with stopping all others software running
during export to DV, no improvement.

I have a 1.4G ATHLON 512Mo MEM and 120Go DISK.

In this newsgroups somebody identify that like a bug,
it is true ?
when can it be corrected ?
it is a new problem?

Thanks