Hi! I've been using NTF version 3.6.1 quite a lot up to now. Today it suddenly started crashing at game start. The launcher seems to be in order, but if I click on Campaigns --> Europe --> All Playable --> Play, it starts loading, but then fails, and I'm sent back to the launcher (without any music). Do you know how to fix this? If I have to re-install, do you know how to keep my saves. I was in the middle of beautiful campaign...