I own a XPS 430 and I'm looking at upgrading my HD 4850 to a dual slot XFX HD 7770. I have sufficient wattage to handle the card, my actual concern is with the physical properties of the XFX.

I think you are referring to your NIC/LAN card for wired internet. Under networks in drivers page, choose or look for Broadcom drivers, this is for your network card.

I have an Inspiron 7520 and uninstalled and reinstalled the new version of Dell Backup and Recovery Manager -- upgraded to premium to make sure that I would have full ability to use the program. Note: the old version didn't work at all -- hung up on backup, etc. I have rebooted.