Hi there,

I understand that this particular section (Newbies) is not the best place for my post, but since I am new to these forums, I am restricted to posting here.

Even though I have a fairly good understanding of the Bitcoin system, I am new to mining. I just attempted to set up my PC for Bitcoin mining, and I am getting huge numbers of rejected shares.

I am mining on 2x AMD Radeon HD 7970 GHz edition GPUs (fglrx driver version 9.012 (Catalyst 13.1)), with Phoenix2 on Linux, in BitcoinPool. I downloaded the miner yesterday and left it to mine overnight.

When I saw it this morning, it showed some scary results: 1740 Accepted shares and 1232 Rejected shares! That is over 40% of all my shares, rejected. From what I understand, such a high number of rejected shares is not normal. Is this a problem with my hardware/system? Am I doing anything wrong? Anything I can do to fix this?

My GPUs are not overclocked, only my CPU. I don't think that overclocking my CPU can affect mining results, correct me if I am wrong.

On a side note, seeing that I am using 2 very powerful cards for mining anyway, would it be better if I try mining solo rather than in a pool?

I would really appreciate it if any of the more experienced miners would be willing to help me do something about my problem. I'm willing to provide more information if I missed important details.

Thank you in advance!