22English SettingSmartPen The Acer SmartPen can work in place of your regular computermouse. Just hold the pen in your hand, and point it at theprojected image to point, click, and drag. It gives you moreflexibility to operate your computer without standing next to it.Pen FunctionTo use the Acer SmartPen, select "On" to activate this function.Link ChannelSet a channel to differentiate between projectors andcommunicate with the Acer SmartPen.Dual PenChoose “Enable” to stay on Dual Pen mode; choose “Disable” toreturn Single Pen mode.Double Click SpeedAdjust the double click speed of your pen to make it responsefaster or slower to meet your needs.Pen PairingTo pair a pen, select "Pairing" and follow the on-screeninstructions. To release a pen, select "Release" and follow the on-screen instructions.InformationDisplays more information about smart pen such as batterycapability and RF strength.For more details, see the notes following this table.Mac OS OptimizationIf the screen shows the offset phenomenon when using SmartPenfunction under Mac OS, it’s required to select "On" to optimize andcorrect it.Note: Mac OS Optimization is for Mac OS only.Startup Screen Use this function to select your desired startup screen. If youchange the setting, the changes will take effect when you exit theOSD menu.• Acer: The default startup screen of your Acer projector.• User: Use memorize picture from "Screen Capture" function.Screen Capture Use this function to customize the startup screen. To capture theimage that you want to use as the startup screen, follow theinstructions below.Notice:Before proceeding with the following steps, make sure that the"Keystone" is set to the default value 0 and the aspect ratio is setto 4:3. For details, refer to the "Image" section.• Change the "Startup Screen" from the default setting "Acer"to "User".• Press "Screen Capture" to customize the startup screen.• A dialog box appears to confirm the action. Choose "Yes" touse the current image as your customized startup screen. Thecapture range is the red rectangular area. Choose "No" tocancel the screen capture and exit the onscreen display (OSD).• A message appears, stating that the screen capture is inprogress.• When the screen capture is finished, the message disappearsand the original display is shown.• The customized startup screen, as shown below, takes effectwhen there is a new input signal or when you restart theprojector.