I'm mining at the P2Pool, not having any trouble mining.
My difficulty is like 2k -

any ideas why?
Mine is too, but that's no real problem unless you have a very slow rig.
LOL! are you serious?! I have 3 x 280x on it - hardly getting any accepted shares. Dif 128-512 is for <3Mh/s rigs......
Ok, but there is no problem with that.
You solve shares at a higher diff so you get a larger piece of the pie too.
With the network difficulty so low and blocks so quick you have no time to get accepted shares in