well figured this one out
wit the saf 5 beta install it does not work correctly
uninstalled saf 5 beta
and installed ccc codec pack
working now
although crappy signal so a little jerky every 10-15 secs
thanks
I also had this problem, I could hear audio but no video and was pulling my hair out trying to resolve it.
Anyway, checked what I had installed - SAF 4 Final - decided what did I have to lose, uninstalled SAF and installed CCCP codec pack, and now video and audio is working fine and I can start watching the World Cup Before this I never watched live TV so never bothered setting it up.
The reason I'm posting this is to say a big thanks for posting your solution
So if anyone else has audio but no video, simply UNINSTALL SAF, and INSTALL CCCP, simple and it works.