hi guys, im new miner, just start mining few weeks ago, actually using guiminer windows 7 64Bits and have a little problem, today and yesterday i left guiminer mining (100Mhs with one AMD radeon HD6670) and not found even one share!! not accepted shares, not rejected shares, i try with cgminer and i have the same problem, i install bitcoin client version 0.8.2 trying to solve the problem and have no positive results.
i.ve try mining on slush pool, eclipseMC and deepbit and always the same problem
i need your help guys, dont know what to do
thanks and sorry for my very very bad english, using google translator xD