drag lock

After updating BI to 5.7.4.2 all my camera position is out place. I just recently upgrade to ver 5 2 months ago so I m not familiar in changes in BI all I remember about drag lock is located when you right click your mouse on camera but now I cant see it.

I've contacted the author of BI about this but maybe I'm not explaining my issue well enough for them to understand so I'll try here to see if anyone else has experienced this issue. I've got latest version of BI, I have two monitors and I have "drag lock" OFF. When I double click on a camera to...