Phantom Blade Zero dev says don't get the latest Nvidia drivers

Phantom Blade Zero developer S-Game posted a Steam announcement advising players not to use the latest Nvidia driver, 621.01, saying version 617.42 currently offers the best experience and that anyone on a newer driver should roll back with a clean install. The post also recommends downloading the 5 GB day one patch and trying the game on handhelds and lower-end or mid-range PCs. S-Game expects Nvidia's next driver update to arrive soon and asks players to stay on 617.42 until then.