Windows 7 Ultimate cannot browse files on other home network computers or network file server

I have two network ports built into my motherboard.  One went dead (don't know why), so I switched to the other.  After that, I can get to the internet but I cannot get to files on other machines or the network file server (a western digital USB network server connected to the router).  My other machines have no problem getting to anything and can get to my Win 7 machine as well.  I can ping the other machines and file server by name and IP, but when I try to connect with a standard \\fileserver\share UNC, I get  an error stating it is not accessible or I may not have permission.  This all worked before.  I can see the Windows Media Server share and get to those, but no file shares.  I have access permissions (it's wide open) and the other machines on my network are connecting without a problem.

As mentioned, everything worked fine on my other network adapter on the mother board, before it went dead.
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See if these services and protocols are installed and enabled on the network interface you are using to connect to others machines:

Microsoft Network Client
Microsoft File and Printer Sharing

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Does the other network adapter work with a live cd like ubuntu?
Do you have a AntiVirus / firewall running at either end?
AllosITAuthor Commented:
Nice!  MS Client for Networks was not installed.

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Windows 7

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