I was trying 8191 and 8193 - nothing has changed.
I even switched AMD drivers to 13.12 - still nothing. I also upgaded the vertminer to the 0.5.4pre.
I've got enough for today, I don't sleep because of the VTC ; )

I'm leaving it with -I 13 - g 1 --threads-concurrency 8192 --> at least I will have about 295 kH/s.

: (

btw pkjames you should probably erase your personal data from this screenshot ; )