I've tried that, but it only opens up some other problems for me so I'd prefer to just have the splitter working.
I agree, I tried SAF 5 on a new rebuild and none of my MKV's would play. So I ended up uninstalling SAF and following BMan's instructions for ATI5000 cards and everything is working perfect. An all in one solution would be perfect, I just cant seem to get it to work correctly...
You enabled audio passthrough durning SAF install, right?
Make sure you didnt add anything to MePo postprocessing.