It sounds like you are encountering an issue with the touchscreen functionality on your Planar monitors in Windows. The behavior you described where only the primary monitor responds to touch irrespective of its position is not the expected behavior for a multi-monitor setup. To troubleshoot and potentially resolve this issue, you can try the following steps: 1. Check Windows Touch Settings: - Open the Windows Settings app. - Go to "Devices" and select "Touchpad" from the left menu. - Ensure that the touch settings for both monitors are configured correctly. 2. Update Drivers: - Ensure that you have the latest drivers for your monitors installed. You can check the manufacturer's website for driver updates. 3. Calibrate Touchscreen: - In Windows, you can calibrate the touchscreen to improve its accuracy and responsiveness. This might help in resolving the issue. 4. Check Display Settings: - Go to "Display Settings" in Windows. - Check the settings for each monitor, especially the touch settings. 5. Third-Party Software Conflict: - If you have any third-party software related to touch or display management, try disabling it temporarily to see if it affects the touchscreen behavior. 6. Windows Updates: - Ensure that your Windows operating system is up to date. Sometimes Windows updates can bring fixes for such issues. 7. Revert to Previous Build: - If the issue started after a specific Windows update, consider rolling back to a previous build where the touchscreen functionality worked as expected, if possible. If you have already checked these steps and the issue persists, you may need to further investigate compatibility issues between your hardware setup and the current version of Windows. In some cases, reaching out to the manufacturer for support or waiting for Windows updates that address such compatibility issues might be necessary. By following these steps, you can troubleshoot the touchscreen behavior on your Planar monitors and potentially restore the touch functionality to both monitors as it was in the Consumer Preview version.