Video settings not saving?

Sometimes when I log onto Mw2 my video settings reset to default?
Anyone have this problem?

is it that sometimes when you launch mw2, it says something like: the game.......... since the last time it ran........., and u klick yes? u gotta klick no

moved to help section

The message is more that The game detected Hardware Changes since last ran, Reset to default crap ? YES NO CANCEL

Click no, Your last local settings will load