Hi.
I have a problem with mining YAC on my Radeon 7950 card.
My command-line options are:
yacminer --scrypt-chacha -d 0 --worksize 128 --lookup-gap 8 -g 2 --buffer-size 1295 -R 2560 -o stratum+tcp://yac.coinmine.pl:9088 -u X.1 -p Y --nfmin 4 --nfmax 30 --starttime 1388361600

also I`ve tried another options:
yacminer --scrypt-chacha --worksize 128 -g 1 --lookup-gap 8 --buffer-size 2590 -R 5120 -o stratum+tcp://yac.coinmine.pl:9088 -u X.1 -p Y --nfmin 4 --nfmax 30 --starttime 1388361600

But in both cases i receive:

Rejected 626b9dc7 Diff 1/1 GPU 0  (Share is above target)
Rejected 90b24df8 Diff 2/1 GPU 0  (Share is above target)
Rejected eaa24967 Diff 3/1 GPU 0  (Share is above target)
Rejected 5ca82134 Diff 17/1 GPU 0  (Share is above target)

The 'A' counter is zero, but the 'R' counter in yacminer main window is increasing.


The hardware configuration is:
2xR7950/3GB RAM (tested only on one card is you see)
4 GB of system RAM
Windows 7 64bit
Catalyst 13.9 drivers
AMD APP SDK 2.8.10 64bit
yacminer 3.5.0.

where I could be mistaken?