A question to you before I try to help. Is the folder 'Games' a folder that you created or was on the directory that came with the computer. The reason I ask is the game, Silent Hunter 4, works best in its only folder directly under the windows. For example. I have my SH4 as, C:\
Ubisoft\ Silent Hunter 4. It doesn't make any different to what the folder is named as long it is in a folder that you created yourself. I think the game, SH4, doesn't play well with other games in the same folder, so place it to itself. Hope this helps and it was the answer you where seeking. Good Hunting!