Hi Maureen,We're sorry to hear about your experience. Please give us a call so we can better support you. Reach out by calling 1-800-SAMSUNG between 8AM - 12AM EST, any day of the week. You can also chat with us online by visiting the ‘Support’ section of our website.~ Samsung Advisor

kpkp, Thank you for sharing your feedback with us. To help you get the most from your TV, you can download the full e-Manual and more by visiting Samsung’s website, then navigating to: Support > Manual & Software > TVs & Home Theater. From there, you can search for and select your U7900F TV model to view or download the available guides. The e-Manual & User Guide are also conveniently built into your TV: Settings > Support > Tips and User Guides. Your TV includes Learn Menu Screen, an accessibility feature that provides audio guidance for on-screen menus. When enabled, your TV will announce the name and function of each menu item as you scroll, without making any changes. This feature is particularly helpful for users who are visually impaired or new to Smart TV menus. To enable, go to: Settings > All Settings > General & Privacy > Accessibility > Learn Menu Screen. To exit, press the Return key twice. If you’d like more assistance with this feature, please reach Samsung Support at 1-800-SAMSUNG, available 8AM – 12AM EST, 7 days a week. LiveChat agents are also available through the ‘Support’ link on our website. ~ Samsung Specialist

Hi Steve, We're sorry to hear of this. It seems you may need spacers to help increase the gap with the wall mount you're using. So we can better assist with this, please reach out to us at 1-800-SAMSUNG, 8AM – 12AM EST daily, or LiveChat with a representative at the ‘Support’ link on our website. ~ Samsung Specialist