Windows 7 second monitor looses image

It seems like you're experiencing issues with using an Infocus X16 projector as a second monitor with your Windows 7 Ultimate system and NVIDIA GeForce 9400 graphics card. The problem you described, where the image is lost after a few minutes and trying to go into the advanced display settings results in a black screen without the mouse, can be frustrating. Here are some steps you can take to troubleshoot and potentially resolve the issue: 1. Check Cable Connections: Ensure that the cables connecting your computer to the projector are securely plugged in on both ends. 2. Update Graphics Drivers: Although you mentioned that you have the latest drivers installed, it might be worth double-checking if there are any newer driver updates available for your NVIDIA GeForce 9400 graphics card. 3. Adjust Power Settings: Sometimes, power settings can affect display behavior. Try adjusting your power settings to prevent the monitor from turning off after a period of inactivity. 4. Check Refresh Rate: Verify that the refresh rate of the projector matches the settings in Windows. Setting different refresh rates could cause display issues. 5. Monitor Settings: In Windows, you can adjust the display settings specific to the second monitor. Ensure that the resolution and settings are appropriate for the projector. 6. Troubleshoot Display: Use Windows' built-in display troubleshooter to diagnose and fix display problems. You can access this by right-clicking on the desktop and selecting "Screen resolution," then clicking on "Detect." 7. Reinstall Graphics Drivers: If updating the drivers didn't solve the issue, try uninstalling the current drivers and performing a clean installation of the latest drivers. 8. Check Event Viewer: Look in the Event Viewer for any error messages or warnings related to the display or graphics card. This may provide more insight into the issue. 9. Test on Another System: If possible, test the projector on another system to determine if the issue is specific to your computer setup. 10. Contact Support: If none of the above steps resolve the issue, consider contacting Infocus support or NVIDIA support for further assistance. These steps should help you diagnose and potentially resolve the issues you're encountering with your projector as a second monitor on Windows 7 Ultimate. Let me know if you need more specific guidance on any of these steps!