Just a quicky.. Updated my Nvidia graphics drivers today to 466.77 and the Mercury Playback engine was suddenly unavailable in Premiere CS5.5.
Eventually ran the GPUsniffer.exe which is available with Premiere and the way the name of the card appears has changed, in my case from "GeForce GTX 1080" to "NVIDIA GeForce GTX 1080"
If you change this in the cuda_supported_cards.txt file (you'll need to be administrator) it will work again.
Why do they do these things!
