Display Driver Stopped Responding/Successfully Recovered

I'm using windows 8 on my Macbook Pro mid to late 2010 15 inch via the latest version of Bootcamp. Every now again my display goes completely black for five or so seconds then comes back and gives this message: "display driver NVIDIA Windows Kernel Mode Driver, Version 320.18 stopped responding and has successfully recovered."

I just installed Windows 8 on a fresh partition. Prior to installing Windows 8 I had Windows 7 and I noticed the problem had started popping up on there as well in recent times, though it worked perfectly for two years.

What's the solution?

Thanks.

Also I should add, the driver only ever seems to crash when I'm browsing with Firefox. Firefox crashes then it brings up this crash report

"Accessibility: Active
AdapterDeviceID: 0x0a29
AdapterVendorID: 0x10de
Add-ons: web2pdfextension%40web2pdf.adobedotcom:1.2,%7B972c e4c6-7e08-4474-a285-3208198ce6fd%7D:21.0
AvailablePageFile: 6668267520
AvailablePhysicalMemory: 2697940992
AvailableVirtualMemory: 3639525376
BuildID: 20130511120803
CrashTime: 1369586878
EMCheckCompatibility: true
Email:
FramePoisonBase: 00000000f0de0000
FramePoisonSize: 65536
Notes: AdapterVendorID: 0x10de, AdapterDeviceID: 0x0a29, AdapterSubsysID: 00c7106b, AdapterDriverVersion: 9.18.13.2018
D2D? D2D+ DWrite? DWrite+ D3D10 Layers? D3D10 Layers+ Failed to create texture for data Error code: 2147942414
ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: release
SecondsSinceLastCrash: 1337
StartupTime: 1369586013
SystemMemoryUsePercentage: 34
Theme: classic/1.0
Throttleable: 1
TotalVirtualMemory: 4294836224
URL: http://windows8forums.com/
Vendor: Mozilla
Version: 21.0
Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 1 :
MSAFD Tcpip [UDP/IP] : 2 : 2 : %SystemRoot%\system32\mswsock.dll
MSAFD Tcpip [RAW/IP] : 2 : 3 :
MSAFD Tcpip [TCP/IPv6] : 2 : 1 : %SystemRoot%\system32\mswsock.dll
MSAFD Tcpip [UDP/IPv6] : 2 : 2 :
MSAFD Tcpip [RAW/IPv6] : 2 : 3 : %SystemRoot%\system32\mswsock.dll
RSVP TCPv6 Service Provider : 2 : 1 :
RSVP TCP Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll
RSVP UDPv6 Service Provider : 2 : 2 :
RSVP UDP Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll
MSAFD RfComm [Bluetooth] : 2 : 1 :

This report also contains technical information about the state of the application when it crashed."