Has anyone run this combo?? Last night I couldn't get a digi signal into the R44, but have run it digi into a 680. I had a friend stop by and we tested my R44 with his V3 and it works fine. We couldn't get his R44 to grab a digi signal from the Mixpre-d either. Test the AES>Coax with the V3 and it works fine. So I'm not sure what is going on. Any help would be greatly appreciated. TIA