to make a long story short my 7990 crapped out on me today and i only had an ancient gts 250 to replace it with. after wiping the amd drivers and installing nividias, the system couldnt find the physical cable that was plugged into the Ethernet port. heres why i think its driver issues- if i uninstall the device in the device manager and restart, it can use the internet just fine albiet at very low resolution. if it is drivers and i cant find a solution then i might cancel my 770 order because they use the same driver. im looking for anyone who might have a solution to this conundrum. any help is appreciated 😀