Check your Aces High\Settings directory. Make certain that the files in that directory do not have the Read Only attribute checked. You can do this using Explorer, click on the top file, then shift-click on the bottom one to select all files, then right-click on the selected files and choose properties, and un-check Read-Only. Just to be certain, if it's already clear, check the box, then un-check it again and hit OK.
