To display, ‘send’ the signal from your ‘Netbook’ to a Smart Board you will need to:
HOLD the [Fn] Key and press ONCE the [F3] key (F3 has a small picture of computer screens).
The video display/signal will toggle/move through 3 outputs each time you hold [Fn] & press [F3]
1. Netbook screen only
2. Smart Board screen only
3. [...]