You'll have to delete the config file of M.A.R.S. This is typically located in C:\Users\your user name\AppData\Roaming\.marsshooter
The folder AppData may be hidden - so you'll have to display hidden files!
Simply delete this file to reset all options. You may also look into this file (with wordpad for example) and lok for the lines where the resolution is saved and adjust it to match your screen size. Hope this helps!
But: Strange bug, normally valid resolutions should be displayed only...
MarsCoreTeam
Simon joined
This member has provided no bio about themself...