I am new to Bitmining and I am running a NVIDIA 8600 GTS card and im getting about 7.6Mhashes using local mining.

Now the question i have is when i am running guiminer I notice that the difficulty level is always 1.  Do i set the difficulty? is there a way to set it? Is this the current correct difficulty level?

I have noticed looking at the mining calculators and such out there that at this difficulty i should be rakeing in the Bitcoins, but many other places I have seen shows that the difficulty is much higher?

What  gives?

Obviuosly i thought i had a decent video card untill i saw a list of how many more Mhashes/sec other cards get.

I hope you can help me answer any of these questions and all tips and suggestions will be greatly appreciated.

Thank you in advance
-Razorboi