Windows 8.1 Pro - Crashing issue

So much for improvements with 8.1 , a once stable and happy system is now an utter wreck.

Repeatedly crashing relating to nvlddkm.sys (or something similar, bloody phone typing)

Far Cry 3 crashed after ten mins, 3D Mark 11 also.

Reinstalled display drivers and still getting issues.

Just don't know where to go from here. Totally regret updating to 8.1 considering time is a luxury for me these days.

Anyone else had problems? Using the latest beta drivers.

Have you tried driver sweeper before installing drivers again?

What about an older revision of the driver?

Really need the new drivers because FIFA 14 works better, no stutter. The point is, either my graphics card is suddenly dying or I need a painless way of removing 8.1.

Mine seems fine on all the games, programs i've been running including far cry