Whether I run the game in my browser or install it to my computer, I get the following error each time.

We were unable to initialize the game's graphical display. Please take the following steps to ensure compatibility:
Visit the technical support forum for up-to-date information and suggestions.
Make sure your system satisfies the game's minimum requirements.
Update your video drivers.
Ensure that hardware video acceleration is fully enabled.

My system specs are well within range, as below.

------------------
System Information
------------------
Time of this report: 7/15/2012, 11:05:57
Machine name: CAVEMAN2
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1
Language: English (Regional Setting: English)
System Manufacturer: MICRO-STAR INTERNATIONAL CO.,LTD
System Model: MS-7529
BIOS: Default System BIOS
Processor: Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz (2 CPUs), ~2.8GHz
Memory: 4096MB RAM
Available OS Memory: 4096MB RAM
Page File: 3416MB used, 4772MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

---------------
Display Devices
---------------
Card name: NVIDIA Quadro FX 4600 (Microsoft Corporation - WDDM v1.1)
Manufacturer: NVIDIA
Chip type: Quadro FX 4600
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_019E&SUBSYS_040810DE&REV_A2
Display Memory: 2536 MB
Dedicated Memory: 745 MB
Shared Memory: 1791 MB
Current Mode: 1920 x 1080 (32 bit) (59Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: SyncMaster
Monitor Id: SAM0612
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: DVI
Driver Name: nvd3dumx.dll,nvd3dum,nvwgf2umx.dll, nvwgf2um
Driver File Version: 8.15.0011.8593 (English)
Driver Version: 8.15.11.8593
DDI Version: 10
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 7/14/2009 03:41:53, 9443840 bytes

Java is fully up to date at version 7, update 5.

On a side note, I was directed to post my problem on these forums by that error message, but even after creating an account I was only able to post once i had run the game on my girlfriend's computer first so that I could create a character for my account. Gives you a chicken and egg type of problem, only solvable if you happen to have a second chicken to borrow. Not the best system really.