Philippe:
Which switcher are you using? - I may be able to help more but for now......
Reference your DVE moving a little bit:
Sounds to me as if you may not have attributes set correctly..
Look at page 41
Memory Attributes - Page 41
As for the second half of your questions - Read page 57
To Save a Custom Reset Setting
Sounds like your setup recalling the Factory Defaults thus, changing your settings.
I personally save all my shows and settings on
MY USB along with the USB that stays with each truck I am on, that way if someone before me happens to mess things up I can quickly reload from my USB all my settings for the desired truck / switcher combination.
#Carbonite