Well, like booleans, Maya can piss you off at times.
I guess you can go through all of your prefs. and see if you clicked something by accident.
Theres gotta be a solution; you'll find it sooner or later.
"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man."
George Bernard Shaw - Man and Superman