Shortcuts

* CTRL + Mousewheel up/down over input textbox: Change the font size of the textbox.
* F9: Open Gmail to send an email to your friend
* F11: Start a call with your friend
* F12: Stop the current call
* ESC: Close the current window
* ALT + ESC: Minimize the current window
* TAB: Switch between multiple chat windows
* CTRL + I: Same as TAB
* SHIFT + TAB: Same as TAB but in reverse order
* CTRL + TAB: Same as SHIFT + TAB
* Windows + ESC: Open Google Talk (if it's minimized, or in the tray)