Driver problems on a HP 530 Laptop

I have a HP 530 laptop which came preinstalled with Vista, I have removed Vista and Installed XP Pro.
I have nearly got all the drivers Installed but I have one yellow question mark left.
I have installed the chipset drives but still the question mark won't go away these are the details of the question mark
on Microsoft ACPI-Compliant System
I have attached  a screen shot of the unknown driver.

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These are the QuickLaunch Buttons. The link I provided should address the issue.

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skdcsupportAuthor Commented:
Thank you very much worked like a dream.
You're welcome.
Wow good work souseran!
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