redshift4maya plugin not loaded

So here's a little one that drives me mad

I rebuild a machine for redshift, go to render and then get the following error "redshift4maya plugin not loaded"


Before you spend some time checking that you have your paths and environment variables set correctly.

Just check and reinstall your video card drivers.    If redshift3d can not find a compatible card and drive present it gives this as a rather ambiguous error.

If you are a Nvidia card user you can always get the latest drivers from here
http://www.nvidia.co.uk/Download/