Patch 1.6 (BorderZone)

The patch is very good - but there is one drawback (I did not find the reason).
When Alt Tav exits in Windows - and when you return to the game, a black screen.
It turns out that to re-enter the game before that you need to exit the game completely !!!
There were no problems with logging out and logging into the game on v1.1 !!!
I googled information about Patch 1.6 - it is not.