Thanks for your answer Adam.
My version of Live is 9.6.1
Check the items you mention and there is no result. The only way I worked was putting a third monitor. Ableton in one, Remixvideo (in VST) in another and there worked in full screen ...
The solution I found for not using a third monitor is to align the external monitor in vertical mode.
In this mode the image of Remixvideo is bigger than the monitor, in this way I can make it match from the picture control option that you mention.
It really is a program that solves my project of live music with images, I will try to use it. The external monitor is for editing, the Ultimate goal is to use it with a projector. (try it too and the result is the same)
I hope you understand why I'm translating with Google.
Regards!