Intel 82562V-2 network card - Windows 7 - Sleep issue

Hello

I discovered this forum recently and it seems to be a good place to seek advice. So here is my problem:

I installed Windows 7 on a Dell Inspiron 530.

After a reboot everything works fine until I put the computer to sleep.

After resuming from sleep the cpu usage is extremely high even when the computer should be idle. Task Manager shows that the System (PID 4) process is using some cpu. Resource Monitor shows that a lot of time is spent in System Interrupts - Deferred Procedure Calls and Interrupt Service Routines.

My conclusions at this time is that the integrated network card (Intel 82562V-2) does not properly resume from sleep and creates a lot of system interrupts. Note that disabling the network card makes the problem go away right away, and the problem comes back right away after re-enabling it.

Tried upgrading BIOS of computer and driver of network card but that did not help.

Any suggestions? Somebody else tried Windows 7 on a Inspiron 530?

Thanks.

I don't see Dell Inspiron 530 on dell's website. How old is this laptop?

It's a desktop purchased in december 2007 (and still under warranty)

According to Dell's website the system is compatible with Windows 7
Dell - Technical Support

However the tech support claims that upgrading the OS voids the software warranty and therefore refuses to help...

Does anybody know how NDIS 6.0/6.1 (Vista) differs from NDIS 6.20 (Windows 7)?

Thanks.