Hello,
thank you for your input. I had the same issue and felt comforted that someone else had it. In order to avoid any doubts, I even did an image of a working screen, deployed it on another, and it didn't work. Something interesting is that the processes are loaded, even if it doesn't show up. So I had the idea to delay the call of the program by replacing the startup menu entry by this bat :
@echo off
echo Wait 30 seconds to load MI
"C:\Windows\System32\ping.exe" 127.0.0.1 -n 31 > c:\dummy.txt
echo Loading MII
"C:\Program Files\MagicInfo Premium\i Player\MpWatcher.exe"
I hope this can help someone.