Guild Wars 2

I can only load gw2 up for about 3 minutes before I get a crash. I cant see any great detail why.

Restarted, Unistalled/Reinstalled GFX drivers. Still Happening.

Thanks for any help

Event Log:

Faulting application name: Gw2-64.exe, version: 1.0.0.1, time stamp: 0×57e5899c
Faulting module name: Gw2-64.exe, version: 1.0.0.1, time stamp: 0×57e5899c
Exception code: 0xc0000005
Fault offset: 0×0000000000468a67
Faulting process ID: 0×1df8
Faulting application start time: 0×01d216993267ff72
Faulting application path: C:\Program Files\Guild Wars 2\Gw2-64.exe
Faulting module path: C:\Program Files\Guild Wars 2\Gw2-64.exe
Report ID: c406391a-4b9c-404b-9ab0-0bcb64af05a3
Faulting package full name:
Faulting package-relative application ID:

Sound Blaster Z Issue, Reinstalled Drivers all working fine.