Auto PanScan problem on dual screen display

[Seldaek]

Hi, the problem I have is that I just want to have an auto PanScan set, but when I switch to fullscreen on my first screen (16/10 widescreen) then hit O to go "Auto PanScan", then go off fullscreen, switch the video window to second display (5/4 ~square) and go fullscreen again, the image is messed (too big). Of course I can press 'O' again and it's fixed, but I'd really like if the "auto panscan" would be remembered and applied everytime I switch to fullscreen, whatever the display it's on.

Thanks for listening, I hope I made this understandable :)