greenuser881,
When you reinstalled the operating system, did you install the Dell System Software(if applicable) and the chipset drivers first? If not, the rest of the drivers will fail to install. How to Download and Install Drivers in the Correct Order
Start with the Dell System Software and the chipset drivers and follow the list.
To find your correct adapter, go to Dell Warranty Status enter your service tag, click on oringnal configuration and the adapter should be listed there.
Rick