There's no problem, that's what the network difficulty is. Per your screen shot you are hashing to difficulty 32, pool difficulty, every hash you hash that results in a solution with difficulty greater than 32 should be accepted. You're using a way out dated version of cgminer. 4.9.1 is current, try a new version maybe?
I downloaded the version you said, but when I double click on start-BTC it disapear quickly I tried the "--scrypt" thing it didn't work so I clicked on cgminer directly now I have a cmd window with "Stratum from pool 0 detected new block", is that normal even my dashboard on the pool websites isn't showing anything?