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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?

SOLUTION

nobus

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duffey05

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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.

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nobus

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duffey05

ASKER

Fresh install. Will an upgrade refectify the problem?

nobus

i doubt it; are there any devices in device manager that are not installed correct?
installing those can help

duffey05

ASKER

Just a Mass Storage Device that I can't seem to fund a driver for.

nobus

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: http://www.pcidatabase.com/index.php

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