Sony Vaio VGN-TXN25N Laptop with Intel 945 Express Video has no Video Out on Windows 7

I have a Sony Vaio VGN-TXN25N Laptop, it has a Mobile Intel 945 Express Chipset Onboard Video Card.  I recently installed Windows 7 and now the VGA Out is not working.  Under the Screen Resolution settings 2 displays are showing, but no image shows up on the External Monitor.  I know the monitor and cable are working properly.  I have tries Fn+ F7, I have also tries (Windows Key) + P and nothing...any Ideas?
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i suppose you installed the latest driver for your video card?  if not try that
duffey05Author Commented:
I downloaded the latest drivers from Sony first, then I updated windows 7, lastly I tried downloading the lastest drivers from Intel's website.  Still nothing.   Thank you for your response.
your laptop does not support Windows 7
did you do a fresh install, or an update?

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duffey05Author Commented:
Fresh install.  Will an upgrade refectify the problem?
i doubt it; are there any devices in device manager that are not installed correct?
installing those can help
duffey05Author Commented:
Just a Mass Storage Device that I can't seem to fund a driver for.
try this to identify the devices :

Start>Programs>Accessories>System Tools>System Information.
Now select  "Components" and highlight "Problem Devices".
All hardware devices with a driver problem will be listed here.
Make a note of the first line of the PNP Device ID line of the entry. It will show a Vendor number and a Device number (VENxxxxDEVxxxx) both four digits long.
Look up those numbers here:

This will tell you the manufacturer and the chip number.  Check the manufacturer's website first or google them
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