Hello,
Results of additional tests of this weekend:
I launch SimTouch (http: //
www.simtouch.eu/) on my main monitor, and FSX in window mode (necessarily, otherwise I would not see SimTouch). The tab Map displays and reacts correctly (that is that I see well my plane moving on the map). As soon as I put Simtouch on my second monitor (USB with DisplayLink), no more map : the display for this tab becomes black. On the other hand, all other tabs (of SimTouch) display correctly and work well...
Thank you for your help(assistant).
Bruno.