Hi John, thank you for the reply! Argh, can't believe I forgot to post that info... Here's the specs, and I did go download Nvidia's installer for the driver so hopefully it is all well.
Andy
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NVIDIA System Information report created on: 08/28/2014 23:56:30
System name: USER-PC
[Display]
Operating System: Windows 8.1 Pro, 64-bit
DirectX version: 11.0
GPU processor: GeForce GTX 780
Driver version: 340.52
Direct3D API version: 11.1
Direct3D feature level: 11_0
CUDA Cores: 2304
Core clock: 967 MHz
Memory data rate: 6008 MHz
Memory interface: 384-bit
Memory bandwidth: 288.38 GB/s
Total available graphics memory: 38882 MB
Dedicated video memory: 6144 MB GDDR5
System video memory: 0 MB
Shared system memory: 32738 MB
Video BIOS version: 80.80.45.00.80
IRQ: 40
Bus: PCI Express x16 Gen2
Device Id: 10DE 1004 17873842
Part Number: 2083 0021
[Components]
NvGFTrayPluginr.dll 15.3.33.0 NVIDIA GeForce Experience
NvGFTrayPlugin.dll 15.3.33.0 NVIDIA GeForce Experience
nvui.dll 8.17.13.4052 NVIDIA User Experience Driver Component
nvxdsync.exe 8.17.13.4052 NVIDIA User Experience Driver Component
nvxdplcy.dll 8.17.13.4052 NVIDIA User Experience Driver Component
nvxdbat.dll 8.17.13.4052 NVIDIA User Experience Driver Component
nvxdapix.dll 8.17.13.4052 NVIDIA User Experience Driver Component
NVCPL.DLL 8.17.13.4052 NVIDIA User Experience Driver Component
nvCplUI.exe 7.8.760.0 NVIDIA Control Panel
nvWSS.dll 6.14.13.4052 NVIDIA Workstation Server
nvViTvS.dll 6.14.13.4052 NVIDIA Video Server
NVMCTRAY.DLL 8.17.13.4052 NVIDIA Media Center Library
nvDispS.dll 6.14.13.4052 NVIDIA Display Server
PhysX 09.13.1220 NVIDIA PhysX
NVCUDA.DLL 8.17.13.4052 NVIDIA CUDA 6.5.12 driver
nvGameS.dll 6.14.13.4052 NVIDIA 3D Settings Server