How to Calibrate a Touchscreen
- 1). Open the Tablet PC and flip the screen around into Tablet PC mode. Use the stylus for easier calibration.
- 2). Click the Windows "Start" button with the stylus.
- 3). Click the "Control Panel" link.
- 4). Click the "Tablet PC Settings" icon.
- 5). Click the "Reset" button to clear calibration data.
- 6). Click the "Calibrate" button to run the calibration utility. The utility will show areas on the touchscreen to click with the stylus when prompted.
- 7). Follow the on-screen instructions and click each area on the touchscreen to calibrate. Once the utility has completed, the Tablet PC has been calibrated.
Source...