Hi All, - PLEASE HELP ME would much appreciate it

Ive tried to learn as much as i can solo but now am fully stuck...just got a U2 Ant USB miner - can i use this to mine DGB's on blockfactory? I can mine correctly using my GPU on Groestl but i have no idea how to do it??

I have CGMINER & Hardware AMD FX8350 16GB 960GTX

The miner runs and connects to the block server and shows running 2 GH/S but i am now getting the same codes as shown below

Rejected *code* Diff X/X AMU 0 (Share is above target?)
Rejected *code* Diff X/X AMU 0 (Share is above target?)
Rejected *code* Diff X/X AMU 0 (Share is above target?)

or

Stratum from pool 0 detected new block

My script is:

cgminer.exe --bmsc-options 115200:20 -o stratum+tcp://stratum.dgb.theblocksfactory.com:9002 -u FianDP.Amistad -p x --bmsc-freq 0781

PLEASE HELP will be worth your while

Thank you in advance - noone else to show me