If you're still using Novak's cgminer-gekko from like 2015, I highly recommend grabbing VH's current cgminer build from the 2Pac thread. He's got a Windows build linked from a post in I think page 107, not sure if it's been updated in the first post or not. VH's driver is much better, and the base cgminer (4.11) doesn't predate MSX. Not sure if that'll help but I guarantee it won't hurt.