System Requirements
Windows
Minimum Requirements
Microsoft Windows 98
Optional
Aspell
for spell checking
QuickTime
for videos and music in the whiteboard
Mac
Minimum Requirements
Mac OS X 10.4
Optional
Aspell for spell checking
Linux
Optional
Aspell or Ispell for spell checking
Source
Minimum Requirements
Tcl/Tk 8.5.x
Optional
Aspell for spell checking