How do I set the step size( -s)?
How high can I go etc?

Also, great work! My GTX 660ti went from 21000 k/hash to 24000 k/hash so far!
With -a 2 it ran at about 20000 k/hash. With -a 1 it went 4000 k/hash higher!
Want to tweak the step size to see if I alter it even more!

Tried the 32bit version for fun.. (Im running 64bit)

It works! Doesn't make any sence..

Also, how do I set it to run both gpus?

I get this Error. It worked before I downloaded the new graphic driver from nVidia and updated to the newer gpu miner, but now neither v1.5 or v1.6 works..

I tryed downgrading to the older nVidia driver again but didn't help.. Seems like it can't detect my GPUs!

Edit: Im running Nvidia 660ti SLI, never mined with SLI before, just recieved my second card.
Before I installed the second card i were mining at 9140 k/hash.

I found the problem. You can't run GPU miner and CPU miner at the same time.

Gainward Phantom 660ti - 815k/hash

Intel I7 3770k @4.4ghz - 1050 k/hash

Ill stick to CPU mining I guess!

AMD cards are so much better for mining!

I have a problem with the GPU miner.. Everything initializes as it should and it starts mining, GPU load goes to 100% but drops to 0% after about 3-5 sec. It than spikes every now and then to 100% but drops after a couple of milli seconds. After about 2-4 minutes it starts mining at 100% GPU again, but stops after a little while. Looks like it stops every time I get one share, or I recieve new block data. Anyone else who has this problem?

I'm running Gainward Phantom 660ti

Thanks!