DisasterFaster, thank you very much for advise and youtube links. However, technology in hands of a barbarian is no more than a pile of junk   

First flag added to a shortcut doesn't add speed at all, second flag crashes wallet.

I tried following instructions per videos and create .bat file with node 0 and node1, but once I uncheck threads the mining speed goes down. if I save on electricity - I lose on a hashrate. I have 2 x X5670 2.93 Ghz, 24 Gb Ram, and 400-500 h/s steady hashrate.  it sometimes goes up to 850, drops to 350, mostly hangs around 450-500 with all 24 threads running.

Lastly, what is this micro deposit that always comes along with term deposit? I deposit 14.5 coins for a year, and get another transaction adding anywhere between fraction of a coin up to more than one coin.  And what's more important - what should I do to get more than 1 coin every time I make a term deposit and how to maximize the amount?

Thank you!