Nvidia GTX Titan not rendering after upgrading to 4.10 *Resolved*

On my windows machine after upgrading to 4.10 in IRay my GPU is no longer rendering - I have only it enabled for rendering.
It is a Geforce GTX Titan Black 4GB that worked fine up til now drivers updated recently, this is a windows 8.1
and I see this error. Any ideas? Thanks
2017-11-05 00:25:49.716 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER): 1.0 IRAY rend error: Cannot render: found no usable devices.
2017-11-05 00:25:49.716 Iray Render error: Invalid parameters (NULL pointer).
Post edited by bwise1701 on
Comments
How up to date are your Geforce drivers? I've hadd this issue before, and i'm pretty sure it was old drivers.
Ugh - yes latest driver works. Newbie mistake -
thanks