I don't get any speed increase with this binary over the default one on a 6950. Getting 1.7 Mh/s with it.

Anybody with a 6950 and X11?
I currently get 1.7 Mh/s at the moment, without any tuning, just Intensity on 16.

Did anything happen to yacoin? The price is currently plummeting down and so is network difficulty.

Sounds for me like a driver crash which can't anymore be recovered by Windows. I guess your machine won't anymore respond to Ping once it's crashed? (Please note that the Windows firewall might block it always)
Does the num-lock button still work on the keyboard? (Light turns off and on) If yes, then the system isn't dead, if no, system is dead

My Gainward 750 Ti arrived today. My mining rig has now GPUs from 3 different vendors and it is working under Win 8 x64
I have the onboard Intel 4600 (with connected display), a AMD Radeon 6950 1 GB for mining (395 kh/s stock clock, scrypt) and the new NVIDIA 750 Ti (290 kh/s stock clock, scrypt).
Driver installation was straight forward. Only downside to not having a display connected to either card, I can't use CCC or Nvidias control panel. If I would want to overclock I have to first connect a display.

Link is sadly dead now

Isn't the card actually using under 40 W if not overclocked? So probably 45-50 overclocked?

Nice, BTC price on the rise again, soon back to 700 USD. LTC also rising slowly, it looks like the mtgox crisis is over

Even better, save it in a csv format to make it maybe comparable.

And you're right, I mixed keccak with scrypt-jane, silly me.

Would say the GT-640. Some 72 kh/s with scrypt, but still some 1.45 kh/s with keccak. While a 780 Ti (this is now only a guess from reading past posts!) manages around 700 kh/s scrypt and around 4-5 kh/s keccak.

[Edit]
Or do I currently mix up keccak with an other algorithm? 

Do you know the reason why yacointalk.com is down? I mean why they have stopped the website?

Not really no. Some very low scrypt cards can get surprisingly high keccak numbers.

I guess if you can somehow include the nvidia drivers including cuda it should work. But I'm pretty sure that this won't be easy.

My YAC are now on bter in full sum.

And an other article with cudaminer in it:
http://www.guru3d.com/news_story/will_nvidia_steal_the_cryptocurrency_mining_crown_from_amd.html

Sounds like autotune is creating a crash. Check a few pages back for sample (but good) 780 TI launch configurations.

Probably to high set start configuration. What is your command line, OS and card?

I also just tried to deposit some YAC on bter.com, but so far it's not showing.

Use -H 2 to reduce CPU load. Should not affect hashing speed, but in some cases it does.

Try to open a website with flash showing, for example a youtube video.
This sounds as if your GPU doesn't clock up to 3D speed clocks while running cudaminer.
You could check that with the free program GPU-Z (if you use Windows).