I don't think your 240s will run x11mod, I should think you'd need to be on this version
https://github.com/prettyhatemachine/sph-sgminer and using the darkcoin kernel.
You'll probably find that 13.11 is a suitable driver, although I'm not whingedoze familiar.
Best of luck.
Ugh! Why must this be x11? I just can NOT get sgminer to accept any shares.. All I get is hw errors on my r7 240.. Anyone have any ides? Tried several versions of sgminer, all kinds of intensity and config settings, 2 different driver versions, and NOTHING. Just a bunch of hw errors.. If anyone can help get this coin mining, I will tip as soon as I can. Running win7 x64 with the r7 240. Any specific driver version I need to use?