VLC is a great player, no doubt about it.
Windows vista 2 (premium and ultima edition) has a new interface which makes window glassy and there is also other fancy feutures such as flip 3d,
however some programs don't like that interface, what windows Vista does is switch back to ordinary windows interface, (screen flicks a couple of times and you lose the glassy looks) for the time the program is running, then when closing the program it switches back to the glassy interface (dwm)..
This flickering became sort of annoing,
Afer a while I figured out a way round it and decided to tell every one about it, (in-case some one's got the same problem)
Change the video output mode to "Windows GDI video output"
In case you don't know how to do that, Go:
> Settings
> preferences
+ Video
---+Output modules
> tick "advanced options" (Bottom right corner)
> change "video output mode t Windows GDI video output,
and there we go, works fine on vista beta 2 now.
---- the only down side, it won't update on my 2nd (extended desctop) monitor, but i can live with it.
Hope it helped
leo
Long live VLC!!