With the PC release of the game there are more and more people posting issues they are having with various technical aspects of the game.
HELP EVERYONE by posting in the Splinter Cell Tech Support forum.
This helps because people having similar issues can post responses and see other peoples suggestions. Ubi support will likely be dropping by soon. and THAT is the forum they will go to first.
In the mean time the PC community will be all over this stuff. But we can only help each other when the tech related question is NOT buried in someone else's unrelated post
Splinter Cell Tech Support forum.