So when solo-mining using GUI miner, Im connecting fine and my  Mhash/s is up, but the number in Difficulty 1 Hashes <number> isn't changing at all (i understand this replaces shares in pooled mining). In pooled mining I accept shares between 10 minutes(best) and 40min (worst) (I really don't have a good PC). Does <number> only go up when you find a block of 50btc?