It is odd that a setting like that just, well, changed. You may want to check the rest of your settings, if they are all changing you may be infected.
I'm Forgetful! so if i stop posting on something that i was helping you with... PM me or IM me
yahoo and aol: blitze105
you can always IM or PM me if i offend you as well, i will edit the post if i have.