first, please update to v1.9i

since you are having issues, you might want to make copies of your keymaps and your ini files just to be safe.

the key map files will save once you hit the 'save' button. if they are not saving, that would be due to a permissions issue. did you install as admin as well as run? and by running as admin, i mean right-click/run-as-admin (sanity check here). if you did it by tweaking the shortcut property... check it. maybe it changed.

let me know if any of that helps,

Rob