Hmmmmm

Try the following, use cgminer:

First delete your .conf file in the cgminer folder (back it up somewhere else if you want)

Open cmd, type:   setx GPU_MAX_ALLOC_PERCENT 100

Then press return and close cmd. Then open a fresh cmd, CD to your cgminer folder and then input the following:


cgminer --scrypt -o yourpool -u yourusername -p yourpassword -s 2 --expiry 1 --queue 0 --thread-concurrency 8192 -I 13 -w 256 -g 2

Press return and let me know what happens