Gotcha. Then you have as ETR3(SS) described. Using the "Uboat Missions" start short-cut from the Steam Library then, do you see the UBoat silhoue as the game loads, and then the after the main menu loads, do you see this in the lower-right of your screen?
Or do you see a "v1.3" instead? What happens if you use the v1.3 start item on the menu? If you see v1.3 when using the Uboat Missions start, then you definitely need to do as ETR3(SS) suggested above, and verify your game's files. Select that "Uboat Missions" short-cut, right-click and choose "Properties", then the "Local Files" tab, and the "Verify integrity of game files..." button from there. It will take a while to run, and depending upon what it finds, might make quite a few changes, so you usually have time to go brew some tea or coffee, and come back in five...
I wonder, if when ETR3(SS) comes back, if he can mention if he had to do a start from that Steam Library menu and activate the v1.3 and v1.5 of the game separately, similar to what my SH3 did? Of course, it should prompt you for that, if I remember correctly...
