i'll explain the whole problem from the beginning
i usually mix using deck 1 and 2 with video and deck 3 and 4 with audio (that's because audio and video must be independent in my style of mixing)
until today i had no problem because i don't had to report to the SIAE inspector (it's like a music policeman) which song i played in the party.
tomorrow (in italy it's 23 pm of thursday) i have to report to the SIAE inspector which song i've played and the history of mixvibes would help me a lot.
the problem is that only the song played by deck A and B are saved into the history and the one played by deck C and D won't
my request is that the history would be implemented even for deck C and D.
the only workaround i can imagine is "no videomix tomorrow"
it's ok but i hope that in less than 1 month this problem will be solved definitively by mixvibes developer.
P.S. i hope that i explained well the problem and the request
dont use the vid plug in ,,can you switch vids to deck c and d ,audio to a and b,, 
might not be possible 
you probly have tried that 
