Windows live mail working offline

you know there are some strange things happened in one of my client WLM, it was always toggled as working offline. whenever we change it to working online, it always revert back to offline.
after scourging the internet, like always, microsoft link the Internet explorer to their other programs like microsoft explorer and of course their own windows live mail.
so you just go to IE, go to file, and uncheck the working offline option.