Found the thread I was thinking about
:
http://forums.ubi.com/eve/forums/a/t...7/m/1481089458
Unfortunately neither of the two people having the problem posted if they got it fixed.
For Steam you might try running it directly from the game install rather than starting it via the Steam front end.
C:\Program Files (x86)\Steam\steamapps\common\Silent Hunter 5\sh5.exe or something similar.