cudaminer --algo=keccak -C 2 -L 128 -H 2 -l F1000x16 -i 0 -o stratum+tcp://maxpool.1gh.com:17333 -u x -p x

hey guys. Your command lines and screenshots look allright. Can't see anything fishy.
But even my 3 GTX 780TIs are having a hard time finding any shares now.
mining difficulty around 300 now (dropped off slightly).
Consider pool mining for a steady trickle of income.
Christian
The problem is user stat from 1gh pool won't accept any shares from cudaminer. I tested with minerd and it shows immediately. 3 cudaminer mining with over 300Mhs and it shows nothing from 1gh pool side.