Hey, I'm new to bitcoin mining and could really use some help here!

So, I'm using a GTX 660M but only get 23 Mhash/s...

Any suggestions as to what i might be doing wrong?

Also, the things stops every few hours with one of these errors:

2013-04-01 20:57:01: Listener for "......": pool.ABCPool.co:8332 01/04/2013 20:57:01, warning: job finished, GTX 660 is idle
2013-04-01 20:57:04: Listener for "......": pool.ABCPool.co:8332 01/04/2013 20:57:04, long poll: new block 000001970017a6f9
2013-04-01 20:57:06: Listener for "......": pool.ABCPool.co:8332 01/04/2013 20:57:06, IO errors - 1, tolerance 2
2013-04-01 20:57:17: Listener for "......": pool.ABCPool.co:8332 01/04/2013 20:57:17, IO errors - 2, tolerance 2
2013-04-01 20:57:20: Listener for ".......": pool.ABCPool.co:8332 01/04/2013 20:57:20, warning: job finished, GTX 660 is idle
2013-04-01 20:57:27: Listener for ".......": pool.ABCPool.co:8332 01/04/2013 20:57:27, IO errors - 3, tolerance 2
2013-04-01 20:57:27: Listener for ".......": pool.ABCPool.co:8332 01/04/2013 20:57:27, No more backup servers left. Using primary and starting over.
2013-04-01 20:57:41: Listener for ".......": pool.ABCPool.co:8332 01/04/2013 20:57:41, IO errors - 1, tolerance 2

What variables should i try tweaking.....