1)They stopped because 130538 was the number of the blocks in the blockchain when you posted! It downloaded all the blocks and well of course it stopped
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
You can check the number of the blocks here
Now for example there are 130550 blocks. And every about ten minutes a new one is discovered and will add to the blockchain
2)Well a quadcore will make like 10Mhash/s and the video cards just a bit more, nvidia isn't good for mining. An ATI 5830 can easily mine 300Mhash and a 6950 even 400 mhash or more
So i strongly suggest you to mine in a pool. with your hardware at current difficulties... use this calcualtor
http://www.alloscomp.com/bitcoin/calculator.phpPut the mhash you are doing and press Calculate!
Oh i see you replied while i was typing.
The 9200 is useless, you need a card that support OpenCL to mine, so you need a 4000 or more recent (5000 or 6000) card. The 9200 you have simply can't mine.
About pool mining download guiminer
http://forum.bitcoin.org/?topic=3878.0 and well register in a pool and use it to mine