Fallout is now displayed with massive colour imbalance, mostly bright yellow and red to the extent the game is unplayable. In-game display settings are of no use - I believe it may be to do with the game's dynamic colour balancing.

Have tried loading earlier saves and restarting the system with no luck.

Any suggestions??

Are other games affected?

No, and none of the Fallout menu/ PipBoy or Home Screen