Mac VI Terminal

Open Terminal: Applictions --> Utilities --> Terminal

Get root permission: sudo -s

Open property file: vi /Library/Perferences/SystemConfiguration/com.apple.Boot.plist

Goto insert mode : type "i"

Add context: <key>Graphics Mode</key>

                     <string>1024*900*32@60</string>

Goto command mode: press "Esc"

Save file: type":w"

Quit vi: type ":q"