AUDIO MIDI setup doesn't remembers my settings

[11miles]

Hi,

i have an avid HD Native card i wish to play surround sound in .mkv files.
The Audio midi sees the card i can play the stereo quite flawlessly.
The problem is when i want to configure the system form stereo to multichannel. the AMS gives me the option, i can also run the test tone through the speakers.
If i play an .mkv it gives me an erros that i don't have surround enabled in the AMS and that the sound will play in stereo.
Also when i reopen the AMS window, the config is back to Stereo.
any ideas?

 

[11miles]

I am on 10.9.5., z77 up5 th, latest multi beast.

 

[11miles]

just realised some other users experienced the same problem, so we can exclude its a Hackintosh problem.