Hi Ditto, check your video driver settings, you probably have anti-aliasing turned on for all applications at the video driver level. MoI uses some information for the video card for doing selection and if the video card modifies it by doing antialiasing on it, it will mess that up.

Either turn off antialiasing for all applications, or you can usually do settings for one application in which case set MoI.exe to have "application controlled" settings rather than having antialiasing forced on for it.

- Michael