Hello,
I want to know, if you tested badmans and my version of SGminer already.
Pls let me (us) know

.
I have tested the latest badmans version.
I just tested your version. It did the same thing. It dropped after a while. I don't know if it has to do with the difficulty change of the block. That at least was the thing I saw when the rate started dropping.
Pls can you give further information to me?
What Pool?
What Configurations?
What Dsiplaydriver version are you using?
Can u check (maybe over Afterburner) if the Coreclock or the Memclock are changing while the card reduces by 10%?
Would u please make a log file till the reduction of speed? (make a start.bat pointing towards your sgminer.exe like this : "sgminer -k bla -u bla -p bla -o bla://bla.bla
2> log.txt")