[MPlayer-cygwin] flickering lines while playing xvid

[matte]

When i use -nodouble another annoying, kind of refresh (wide in height) 
in the middle, across the screen. It looks like low framrate fora couple 
of seconds and it happens quite often. When the camera pans or other 
fast moving scenes it appears for sure with -nodouble.

With a clip that doesnt have the flickering and i have -double on it 
runs very smooth and nice. Wouldnt that prove its not hardware related?