Download Surface Pro 3 from Official Microsoft Download CenterDo have a link to that specific driver? Im stuck with 15.68.3091.193. The roll back option is grayed out.
Also, I still have not recieved the "System Firmware Update – 9/29/2015", I've check for updates manually, however it does not show up.
According to this article the firmware update is improving stability:
Surface Pro 3 receives system firmware update with improvements
Download the .msi dated 9/29/2015 run the .msi and it should install all of the new stuff, make sure your cover is attached.