Yeah.. and it isn't only with Windows 11 but also with Windows 10. I installed Windows 11 precisely because the problem appeared on Windows 10. I also tried using old graphic card driver but with same effect. The only thing I have found how to solve this without restarting the game is when this issue appears, and you have black screen ... press ALT + ENTER > Arma comes into windowed mode, and you can see the game again. Now press it again and Arma comes back into full-screen mode, and you can continue playing till the next "crash". I also noticed (but it could be a coincidence) if you use vertical sync. and FPS are locked on 60 (GPU usage +-50%) it doesn't happen that often. Yesterday I played for 2 hours straight.

Hello, it's a few days ago when I decided to try again DayZ mod on Arma 2 but now I have a little problem here. I join server, play maybe 10-60 minutes normally and suddenly the game stop responding or (more common case) freeze but only visual. I can hear the audio and if I press ESC (in working state it opens disconnect menu) I can see my mouse cursor moving but that's all. I can't see the disconnect menu. I noticed that before this freeze the GPU usage was 100% and then immediately 0% and during the freeze Arma uses 0% GPU. So I need to "end task" in task mngr and start Arma again. As I mentioned this happens very often. I can play an hour without any problem or I can't play even 20 minutes without crash. I also need to mention that I have installed totally clean Windows 11 and installed new Arma 2 there but it hasn't helped me. Now I have Windows 10 (v.21H2) Nvidia graphic card with newest driver and Intel CPU I have 32GB of RAM so RAM isn't the problem. Thanks for any idea how to fix this.