Yea if you overclock it, it can change unstable. What program you use, im intersted too in your project
Can u put link in forum?

Sure I use a CUDA minor in Windows now for experimenting. Here is a guide but, you can google around and find more info:
http://cryptomining-blog.com/5323-quick-guide-on-how-to-mine-Athereum-on-windowsI'm running this on my gaming rig with one Nvidia EVGA GTX960. In one day I've mined $2.77 which is about $81/month at the current price. It is profitable currently even after electricity. I might just buy some more GPU's and build up a rig soon. I figure even if the price crashes I can always sell cards on Ebay to get some money back.