a) I don't use compiz - because it is a broken POS, ever was
b) I don't use lenny. I don't use debian. I never will
c) I don't use stone old software. So no Xserver 1.4.X but something more recent - 1.6.1
d) even with earlier xorg-server versions I never saw that mysterious 'tearing'.
e) I am using tvtime which does not work without xv - and it works well.