Just like Kedash00 mentioned: you have to use the EXACT resolution, like 800×600. If that's off by only one, say 799×599 or so, then WoW can't handle it. It must be connected to the newer KC maximizer version, when the author added the dropdown menu... so just use a res, that's supported by WoW, like I use (see above). On a 1920×1680 screen, I have one 1280×1024 and two 640×512 windows. Works great with WoW. I actually played around with the values when I installed the 1.8i version of KC, and it was off by one too, so I got a squished image, checked the maximizer and corrected the values. It also may be connected to a later patch version.. /shrug not sure.