Unfortunately as soon as I press Escape the Raine window vanishes. It doesn`t even need to be in fullscreen for this to happen. That`s why I asked for the safe-close shortcut. This would be the only way to save my data after loading a game in this machine/system. Even the bordeless setting can`t help me here.
ESC to call the gui and then Q, even if you don't see it. You should know that already by now !
A fullscreen window is not bad too imho, you don't care about windows decorations then.
Edit: I`ve just noticed that with NGCD games I can reach the GUI. So the issue is with the arcade roms.
It's a crash then, oh well you can always try to describe how you did that, but I guess it's related to some hardware on your side.
This is the kind of situation where you could give some useful information if you knew how to build a debug version, anwyay... !