Just a followup - running window mode runs the game fine, full screen does not.
Running ATI Catalyst 8.5 Drivers if that's any help (also Vista obviously running SP1)
Formski
Formski,
I have the exact same issue. Back when I had an 8800GTS, running Vista x64 with 4GB of RAM, before the 1.14 patch, I would get the black screen.
Now, I have a Q9300, X38 chipset mobo, 8GB RAM, and an ATi Radeon 4850. I'm using the new 8.6 Hotfix drivers from ATi. I'm seeing this problem all over again, unless I run ArmA in windowed mode.
This almost make me want to go back to the green team. Except that every other game I have tested this card on runs great.