Computer refuses to shut down

HI guys,
I have a Dell Latitude E6400 running Windows 7. I have it docked to a docking station. Also connected to the docking station are a monitor, mouse and keyboard. I have set the laptop display to project to the monitor so when my laptop is turned on and the lid is shut, all images are shown on the monitor, and when the lid of the laptop raised, the display then shows on the laptop. Here is the issue I have:  say I have the lid of the laptop shut and display is now on the monitor; when I click start - shutdown, I see the shutdown process begins and I can tell because it shows all the things that happen when you try to shutdown a laptop - from the monitor. However my laptop itself doesn't shutdown/go off. I can still see the power button light on the laptop stay on - it remains lit (it’s blue in color). Each time I have to manually hold down the power button for about 10 seconds before the light goes off and the laptop shuts down. Can you please provide some reasons as to why this is the case? I don’t think it’s normal because as far as I know, when you do start-shutdown on any machine (whether projected to a monitor or not) it should shutdown after a few seconds. Could you please provides some suggestions as to why this is the case and help me resolve this issue so that I can get my laptop to shutdown? Any suggestions/answers are appreciated.
Thanks.
ChemtradeAsked:
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ChemtradeConnect With a Mentor Author Commented:
Quick correction: the laptop was a Dell Latitude E4300 with windows XP Pro.

Now it didn't have the latest BIOS so I upgraded it.  The laptop has a built in webcam. The issue was fixed by downgrading the webcam driver.

Now the machine shuts down properly.

Thanks guys for your suggestions.
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Hilal1924Commented:
One thing that comes to my mind is that you need to verify the Power Policy of the laptop in control panel. Second I think you might need to flash the BIOS. See if Dell has provided any newer BIOS version.

Control Panel > Power Options > Change Plan
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ezskolCommented:
I agree, check Dell for the latest BIOS.  Have you tried turning off Internet Security software and try shutting it down?  Does that work?
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QlemoDeveloperCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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