[Armitage]

When i run without the "Adjust display refresh rate to match video" enabled, everything from 480p to 1080p runs smoothly but with light tearing, and i dont like tearing. Sound plays ok.

When i enable "Adjust display refresh rate to match video" movies and tv shows start to stutter and look like they play in 10fps, be it 480p or 1080p. Sounds plays ok.

I know the tv changes refresh rate when i have the option enabled since it briefly shows "1080/24p" when i have it enabled and doesnt when i havent. Does anyone have any kind of idea on how to get rid of this highly annoying problem?

XBMC 10.1
Windows 7 x64 SP1
PowerColor Radeon HD4670 Go Green 1GB
Catalyst version 11.2
Inter Core 2 Duo E7400 @ 2.8Ghz
4gb RAM
Receiver: Onkyo TX-SR806
Tv: Sony KDL-52W4500
Debug log: http://pastebin.com/JYi7MqJf

EDIT: I used to run the exact same setup earlier except that then i ran MediaPortal instead and had a seperate program that changed the update frequency for me.

[Armitage]

The strangest thing is that if i tab out and then tab in again with the movie playing, everything works just fine, no stuttering or anything.

EDIT: The other strange thing is that it now continues to work. Anyone have any idea why it suddenly works?