Toshiba NB305 - Manual (Page 73)

User’s Manual 5-5
The Keyboard
TOSHIBA Zooming Utility (reduce): Pressing FN + 1 reduces the icon
size on the desktop or the font sizes within one of the supported application
windows.
TOSHIBA Zooming Utility (enlarge): Pressing FN + 2 enlarges the icon
size on the desktop or the font sizes within one of the supported application
windows.
Volume down: Pressing FN + 3 to decrease the volume in increment.
Volume up: Pressing FN + 4 to increase the volume in increment.
FN Sticky key
You can use the TOSHIBA Accessibility Utility to make the FN key sticky,
that is, you can press it once, release it, and then press an "F Number"
key. To start the TOSHIBA Accessibility utility, click Start  All
Programs  TOSHIBA  Utilities  Accessibility.
Windows special keys
The keyboard provides two keys that have special functions in Windows:
Windows Start Button activates the Start menu and the other, the
application key, has the same function as the secondary mouse button.
This key activates the Windows Start menu.
This key has the same function as the secondary (right) mouse button.