Start this Level in PC won't load certain map.

[Valeness]

Ok, so when I click on "Play in PC" on my map it plays as normal until the loading screen. I get the swirly Unreal logo, and then once the loading screen hits it displays my level name "Zone2" for like 2 seconds and then the name and text goes away and the window flashes every second; failing to load the map.

I loaded another map "Zone1" which has a trigger volume to open Zone2. And Zone1 loads fine, but when I touch the trigger, it does the same thing and fails to load Zone2.

Any ideas?

PS: This is only on Play in PC. Map loads fine in editor window.

EDIT:

dxdiag -

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System Information
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Time of this report: 8/7/2012, 18:38:56
       Machine name: DREWSLAPTOP-HP
   Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600) (7600.win7_gdr.110622-1503)
           Language: English (Regional Setting: English)
System Manufacturer: Hewlett-Packard
       System Model: HP Pavilion dv6 Notebook PC
               BIOS: Default System BIOS
          Processor: Intel(R) Core(TM) i3 CPU       M 350  @ 2.27GHz (4 CPUs), ~2.3GHz
             Memory: 4096MB RAM
Available OS Memory: 3894MB RAM
          Page File: 3498MB used, 4287MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: 96 DPI (100 percent)
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7600.16385 32bit Unicode

Also, log signifies no problem. Though idk if log is supposed to run with Play on PC or just in PIE. But like I said, it doesn't even load the map. So idk. :/

[Valeness]

Bumpity Bump?