viewsonic display problem with windows 7

During an upgrade from XP to Windows 7 I experienced a problem with my ViewSonic vx2235wm display and NVIDIA GeForce 8400gs video card. The display is powered and the blue light comes on when the computer is starting up. I get a couple of flickers of lighter gray on the display but no picture. I have upgraded the drivers for the NVIDIA card and the display but no help. The diplay is on a DVI-D single link connector with the video card. I can hook up a Sony display to the VGA connector in the NVIDIA card and get a picture fine. Neither NVIDIA or ViewSonic have come up with anything that helps. Any suggestions?

I finally got the driver needed from ViewSonic but it took two emails and a phone call. The driver is not listed on the site but is available at: http://www.viewsonic.com/support/downloads/drivers/_download/Standard_Monitor_Driver_Signed_Win7.zip

There is also a driver for 64 bit:

http://www.viewsonic.com/support/downloads/drivers/_download/Standard_Monitor_Driver_Signed_Win7_x64.zip

Thank you, richlenz, for making this post back in 2009. I found it useful today (May 25, 2015) to get the WIN7 driver for my Viewsonic VX2235, which I just put back in service on a newly upgraded (to WIN7) Dell OptiPlex 780. Without this driver, I was unable to get the monitor native 1680x1050 resolution.

It just goes to show you that even old posts here continue to have value.