I launched the game, and it took a while to load, but in the end it loaded. I opened up the server browser and joined A DayZ Experimental server, specifically UK 0-2 (I believe)
I was in 10th queue, and then on 5th it just crashed my game and opened a box saying:
"DayZ: DayZ_x64.exe - Application Error
The instruction at 0x0000000000A1C257 referenced memory at
0xFFFFFFFF816CA78. The memory could not be written.
This happens almost everytime, and sometimes I actually get to join a server to play it.