Hey guys, I can't get my mining going 

I got 2 cards : Gigabyte 280x, Asus R9 290 ref.
I am using vertminer 0.5.2
This is my .bat file :

setx GPU_MAX_ALLOC_PERCENT 200
setx GPU_USE_SYNC_OBJECTS 1
COLOR 0A
vertminer.exe --scrypt-vert -o stratum+tcp://stratum.simplevert.com:3343 -u xxx.worker1 -p x -v 1 -w 256 -I 13,17 -g 2 --lookup-gap 2 --gpu-powertune -20,-20 --temp-overheat 86 --temp-cutoff 90 --gpu-memclock 1500,1500 --gpu-engine 1000,1080 --thread-concurrency 8193,24550

And this is my conf :
{
"pools" : [
   {
      "url" : "stratum+tcp://simplevert.com:3343",
      "user" : "x",
      "pass" : "PASSWORD"
   }   
]
,
"intensity" : "13,17",
"worksize" : "256",
"lookup-gap" : "2",
"gpu-threads" : "2",
"expiry" : "30",
"scan-time" : "5"
}
http://s15.postimg.org/l855ddkm3/vert.png


The 280x card starts and works (althogh kinda low hashrate at ~300), but the 290 doesn't start as you can see. I tried running 2 instances of vertcoin, same result. Donno what else can I try.
I'm running win 7 x64.