My tablet connects, but only a grey box shows
1) Make sure the image file is a jpg.
2) Confirm you did not accidentally turn off “Static Content” in “Windows features.” The feature needs to be “ON.” —— To reach “Windows Features” click on Control Panel, select “Uninstall a program or Feature. Click “Turn Windows Features On or Off,” in the left corner of the screen. Drill down to “Static Content.” (See image below)