Can no longer view MKV files

[brou]

I used to be running iATKOS 10.5.5 on my XPS420, but I wanted to upgrade to 10.5.6. I could never get the upgrade to work with iATKOS, so I switched to iDeneb.

When I was running 10.5.5, I could easily watch 1080p .mkv files. But I can no longer watch them. I can hear the audio, but the picture only comes through all pixelated (about 1 frame a minute).

Any idea what would cause this? And is there a fix?

Video is nVidia 8800GT 512mb. Not sure what else you would need to know.

[Taisto]

What codecs are u using? Perian i presume ?

[brou]

Yes, I have Perian 1.1.3 installed.

[brou]

6/12/09 7:23:16 PM [0x0-0x37037].org.videolan.vlc[1732] [00000513] avcodec decoder error: more than 5 seconds of late video -> dropping frame (computer too slow ?)


I found that message in the Console when I attempted to play a movie.
This is not a slow computer (Q6600, 3GB), and I was able to play video in it just fine with iATKOS.

I'm guessing there's some driver issue with this version of OSX86 that is causing problems.