>Hi,
>
>I have been Googling for the captioned problem but still can't find a way to make this Offline to unstuck and go to Online mode. I am using POP/SMTP accounts. Any suggestion would be greatly appreciated. (This is Windows 7 64-bit OS). TIA.

Does this work?

1. go into the control panel >> Mail >> set the account to use cached mode. then in outlook the button for Online and Offline would work.
2. On the ribbon, go to the Send/Receive tab - the Work Offline button will show as activated. Click the Work Offline button to de-activate it.