I got a couple of kernel panics on upgrading to 10.9.3 but then Nvidia released new drivers for it and i haven't had a single kernel panic since switching to them.
Although - one port on the graphicscard won't wake up if a connected screen goes to sleep. Nvidia had that problem on the first released 10.9.2 driver, but fixed it about a day later.
Could you try checking if the Nvidia supplied drivers helps?
Although - one port on the graphicscard won't wake up if a connected screen goes to sleep. Nvidia had that problem on the first released 10.9.2 driver, but fixed it about a day later.
Could you try checking if the Nvidia supplied drivers helps?