NVIDIA OpenGL Driver unknown Issues

Hi!
This is the error which is hampering our project.
I found an error which started from June 16th 2010. But I found no windows updates on the same date as the error, other than (Windows Defender)
May be it happens when working with Image overlays.
ERROR:
NVIDIA OpenGL Driver
The NVIDIA OpenGL driver detected a problem with the display driver and is unable to continue. The application must close.
Please visit http://www.nvidia.co/pages/support.html for more help.
OK
We opened the side of the case in the possibility that there has been an overheating problem.

Nvidia Driver
ver 8.16.11.9175
(nVidia Quadro FX 1700)
I am running:
Windows 7 x64
Adobe premiere CS5 Production
nVidia Quadro FX 1700 (MRGA14L)
4 Gig ram
RAID 10 2 750GB drives
Duo core 3.0 6MB L2 Cache
UPDATE:
Having the case open did not help.
I have installed New Nvidia drivers but get a different error:
*ERROR:
Your hardware configuration does not meet minimum specifications needed to run the application. The application must close.
Please visit http://www.nvidia.co/pages/support.html for more help.
OK

I have run Windows Update and installed all four updates so now I am waiting to see if the error occurs again.
Whatever is behind this, I really can’t configure. Help needed. Thanks.
