ArmA2.exe Has stopped working when loading into a server

[DEADdem 1]

I can join servers and stuff just fine. It's when I get to the Loading screen is where the game crashes. A few months ago I used to be able to enter multiplayer sessions and what not.

When the loading screen comes up, After a few mins, the game CTDs and says 'ArmA2.exe has stopped working'.

Specs:

Acer Aspire 5755G

Intel Core i5-2410M @ 2.4GHz(Quad Core)

4GB RAM

750GB HDD

USB 3.0

nVidia GeForce GT 540M - 1GB Dedicated(2.7 Overall)

EDIT:

I join ArmA 2 CO/OA servers just fine.

Edited May 24, 2013 by DEADdem