Windows 7 - VLC playback blocky/pixelated?

same problem here .. pixelated screen but i used for video output openGL and it worked fine. DirectX video output dont solve problem just openGL... Anyway one more thing. The video playback on Windows 7 is a slight brighter then on windows XP with same monitor calibration. It is getting on my nerves bc the black is not black but gray and i did calibrate all the same as on my xp... This only occure when im playing movies... the colors on Windows 7 are ok no problem there... plz anybody know what is the problem?

Since I believe it's due to a chance in some MS API or driver, was it fixed in the latest Win 7 version? Does it happen with all grafic cards or only with some Ati ones? I have Win 7 build 7100 and ATI 2400 card and pixelation happens with all renderers in all DirectShow applications except EVR renderer which works fine. VLC does not rely on DirectShow I think so the problem must be DirectX related.

USE OPENGL OUTPUT !!! opengl output works best for me. im running Windows 7 64 bit and all video players show pixelated video - wmp, lightalloy, default vlc. directx output also does the trick but it requires that popy color scheme changes.

i have Windows 7 64bit RTM + ati 4870. tried reinstaling my samsung t220 drivers, tweaking monitor setting - not efect on pixelation.

Like i said just use opengl or dont use VLC like i give up since my defoult sistem is Windows 7... it seems the newest versions of vlc are not so good even on my macintosh the new version of vlc is buggy...
I just use now WMP it is good , never use it before in my life but now i do... if wmp player dont do the job i get BS player ..that is all ...

I use GOM player and don't have any problems.Does everything vlc does.

I switched to Open GL in VLC and use either EVR or a custom presenter in dshow apps. Still it would be good to know what's causing the issue, does it happen only with certain hardware? Does it only happen with certain Win 7 builds? Please post your specs! Mine:

Win 7, build 7100, 32 bit
Ati 2400

@Bloop: We already know the problem don't occur on XP...

I had a problem with vlc on build 6xxx i really dont remember my first build , and on win 7100 RC and now on Win RTM 7600... No difference in any of them ... My specs are
amd x2 athlon 4000+
ati 4850 ...
Well ill be checking out this problem on my macintosh where it is installed win 7100 and have nvidia 8800gt graphic to see if there is a problem too ...

did you change to opengl as suggested in previous posts?

I was having bad pixelation problems under 7 final x64 with ZoomPlayer / FFDShow / AC3Filter until I switched the renderer from VMR9 to EVR.I also had good results enabling 'Resize & Aspect' in FFDShow to 'Resize to screen resolution' whilst sticking with VMR9, but with higher CPU usage.

Same here with VLC 1.0, however changing the output to "OpenGL" (as suggested by the VLC forum), it's so much better, but still not perfect as before like in XP SP3!