Has anyone noticed flickering at the edges of the display that goes away after a couple seconds? I double checked all the connections on my cards and reseated them. Still there. I'm now on 388.59 an I don't see it anymore. Was this an issue with the last couple driver releases?

I don't used latest drivers  , but you could review  the NVidia driver feedback threads  to see what has been reported in them or the latest released  ??
 
https://forums.geforce.com/default/topic/1030038/geforce-drivers/official-388-43-game-ready-whql-display-driver-feedback-thread-released-11-30-17-/15/
 
https://forums.geforce.com/default/topic/1028776/geforce-drivers/official-388-31-game-ready-whql-display-driver-feedback-thread-released-11-15-17-/32/
 
I just don't update a driver 'just because '   this old one like 355.82  and 353 .62  [on that one now ]  has done all I ask of it  for my 900 cards   . 355.82 had issue with a game bf bad company 2  so I went back to 353.62  where it worked great   tried another later driver and had more issues like blackscreening  flickering and what not,  so  ???????
 
like one guy said  '' NVidia seems to brake as much as they fix these days  ''   like that game worked great in that driver then the next driver release  driver its broken  ..lol.... 
 
then notice how many are win-10 users  ????  I don't use that malware called 10 and I never experience 98% of there issue reported , hmmmmmm......

good point .