25Calibration― Instructions below are for Windows 8. The same method applies to both Windows 7 and Windows 8.― After changing the screen size or PC/AV mode using the OSD menu, the monitor may need to be calibrated again.― In the occurrence of an error during calibration, go to Tablet PC Settings the Display tab. Tap Reset, and calibrate again.1 In the Display tab, select Setup under Configure. 2 Tap the page displayed on the product with your finger.― In dual monitor mode: If the following page does not appear on the product, press the Enter key todisplay the page.Touch this screen to identity it as the touchscreen.If this is not the Tablet PC screen, press Enter to move to the next screen. To close the tool, press Esc.