Latest version, shut it down by doing CTRL+c

Im having the same problem on intel i5.

Each miner is using 1/N_Core of your CPU, where n_Core is the number of Cores detected by windows. If you have HyperThreading, enable it to half the CPU usage.

It shouldn't use any CPU (unless you use it on your CPU which you should not). Any other CPU usage is cleanly problem of driver + OpenCL SDK + OS.

This won't half the cpu usage, just apparently.

No, it just looks that way because Windows will say that 100% of one core on a dual core CPU is 25% instead of 50%. You still only have two cores, and a single process will 100% of it even if you enable HT. Enabling HT will not give you twice as many cores or twice as high performance. If two process use the same core with HT, it will only be a few percent more efficient than using a single core at best. Setting affinity is much better.

Windows has probably put two process on the same core, then.

What's the new message all about ...

16/03/2011 11:53:09, 68b26a98, accepted                     
16/03/2011 11:53:19, a7c9af8b, accepted                     
16/03/2011 11:54:54, a59d5bc1, accepted                     
16/03/2011 11:56:08, 06783321, accepted                     m0mchil's python miner
16/03/2011 11:56:51, 14d00ef9, accepted                     
16/03/2011 11:57:57, 676f7efb, accepted                     

When I download it on Windows 7 it says "What should Firefox do with this file?" then you can tick a "Open with" box that has a "Browse..." button after it, or a "Save File" box. I tried both but I didn't know what program to open it with. Also, I followed the first three steps of these instructions. Only the first three because the rest was for after downloading the miner.