Display changed from 1680x1050 to 1440x900 after restart

Last night windows update installed an update and then it restarted my computer while I was asleep. When I got on this morning my display had been changed from 1680x1050 to 1440x900 which is lower quality and does not fit on the screen correctly. I have a Sony KDL-52XBR4 LCD tv. Monitor Type indicated in Display Settings: Generic Non-PnP Moniter. Display Adapter: NVIDIA GeForce 6150SE nForce 430. Driver Date: 05/22/2008. Driver Version: (most current driver). Bios Information: Version OS: Vista HP 32-bit. I have for 3 years now used 1680x1050 as the resolution. Now it has 1680x1050 as a hidden mode. If I uncheck 'Hide modes that this monitor cannot display' and then select the correct resolution it obviously will not display it correctly even at different refresh rates. No other resolutions besides 1680x1050 look acceptable. What are possible solutions to my problem?
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More about display changed 1680x1050 1440x900 restart
  1. Windows Update installed newer drivers than what you used to have. These newer drivers may not support your 'legacy' card. Go to nVidia's website and download older drivers, preferable ones specific for that card (or have that card under the description).
  2. Thank you for your time and advice shadow187, I really appreciate it. I went to the Nvidia website and selected 'Automatically find drivers for my NVIDIA products.' and then was able to download what was recommended. For anyone else who might encounter this problem I have pasted a link to the file I downloaded below. Thanks again for your time and advice.

    Link to download file for NVIDIA GeForce 6150SE nForce 430 driver:

    Found at: http://www.nvidia.com/object/win7_winvista_32bit_191.07_whql.html
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