This may be due to your product registry becoming corrupt. One way to fix this is to uninstall Max form your computer. Go through and delete all folders related to 3dsmax 2014 such as ............
(C:ProgramDataAutodesk3dsMax 2014) "ProgramData folder is a hidden folder" -
(C:Program FilesAutodesk3ds Max 2014) - (C:Users\Documents3dsMax) Be aware that this may require you to re-register MAX. Reinstall Max and you should be good to go.