I just got this to work in 5040x1050. I'm posting it here for people who attempt searching for WoW and SoftTH. Note the softth files are copied into the main world of warcraft directory, and the config file you need to edit is in the WTF directory. Thanks to ithrial!
Paste this in there...also you have to change the start resolution in the config.WTF file in the wow folder to the 5040x1050 otherwise it wont start...Hope this helps...i Havent messed with the bezel managment yet...
[config]
; deviceIDLeft/right: Direct3D device ID's of left and right monitor, or 'auto' for automatic
; secondaryWidth/Height: Left & right monitor resolution, or 'auto' to use same as middle screen resolution
; secondaryRefresh: Refresh rate of left & right monitors, or 'auto' for automatic
; secondaryFormat: Secondary device image format, 'RGB32', 'RGB16' or 'YUV12'.
; antialiasing: Level of forced anti-aliasing
; anisotropic: Level of forced anisotropic filtering
; borderSize: Size in pixels of frame border between monitors that is discarded
; noHotkeys: Set to 1 to disable all hotkeys
deviceIDLeft=auto
deviceIDright=auto
secondaryWidth=1680
secondaryHeight=1050
secondaryRefresh=60
secondaryFormat=RGB16
antialiasing=0
anisotropic=0
borderSize=0
sideExtraWidth=0
noHotkeys=0
[Direct3D]
; ** Advanced setting for Direct3D games **
; cylindicalCorretionAngle: Amount of cylindrical correction done, use with sideExtraWidth
; hideNondefaultDevices: Hides all but the default adapter from the game
; forceHorizontalFOV: Forces horizontal FOV to be three times as wide
; forceResolutionWidth/Height: Forces device to be created with this resolution
; force16bitDepth: Force game to use 16bit depth buffer, can improve performance and reduce memory use
; sleepBeforeRead: Time in ms to sleep before reading back buffer data from video card
; useMultihead: Uses multihead features of primary card if available, can increase performance and reduce memory use
; Set to 2 to force multihead initialization even if game doesn't create device with TH resolution
; delayedPresent: When useMultihead enabled, delay primary monitor present to sync with secondary head
; swapOrder: Swap order at which the frame contents are copied
; autoSquash: Automatically squash output to middle monitor if only pretransformed (GUI) elements are drawn
; d3d8dll: Path to D3D8.dll/D3D9.dll to use or auto for automatic (system32 dir)
cylindicalCorretionAngle=0
hideNondefaultDevices=0
forceHorizontalFOV=0
forceResolutionWidth=5040
forceResolutionHeight=1050
force16bitDepth=0
sleepBeforeRead=2
useMultihead=1
delayedPresent=0
swapOrder=0
autoSquash=0
d3d8dll=auto
[hooks]
; Win32 API hooking settings - Used for some extra compatibility and game-specific fixes
; doHooking: Enable/disable hooks in Direct3D, with OpenGL hooks are always enabled
; doScaleMouseCoordinates: Scale mouse coordinates for getCursorPos to fix games which do not handle negative screen coordinates properly
; doScaleFromLeftScreen: Spread out mouse coordinates from left screen to full width
; doScaleWindowRects: Scale game window rectangle to triplehead size
; mouseXoffset: Number of pixels to offset mouse cursor position in X axis, to fix misplaced cursor due to negative screen coordinates. auto = use X resolution
doHooking=1
doScaleMouseCoordinates=0
doScaleFromLeftScreen=0
doScaleWindowRects=1
mouseXoffset=auto
; Triplehead screenmodes to add to resolutions list (width multiplied by 3 and border added)
; Must be last in this file
[modes]
1680x1050x60