I cannot get it to work with eyefinity either. Menues are too big.
I have changed the TakOnH.config file like this:
language="English";
adapter=-1;
3D_Performance=1500000;
Resolution_Bpp=32;
Resolution_W=6048;
Resolution_H=1080;
refresh=60;
winX=16;
winY=32;
winW=6048;
winH=1080;
winDefW=6048;
winDefH=1080;
Render_W=6048;
Render_H=1080;
FSAA=2;
postFX=3;
GPU_MaxFramesAhead=1000;
GPU_DetectedFramesAhead=3;
HDRPrecision=8;
lastDeviceId="";
localVRAM=2129149952;
nonlocalVRAM=2147483647;
vsync=1;
AToC=7;
SWLayersCount=64;
PiPEnabled=1;
Windowed=0;