New
#1
Right-click in some apps shows then hides context menu
In some applications (Office 2010, Adobe Reader DC) right-clicking on the screen shows a context menu but then usually hides it again. Holding the right button down or double-clicking sometimes makes the menu stay after the button is released, and sometimes the context menu remains visible after a single right-click. In other applications (eg Notepad, Paint) the context menu does not disappear after a single right-button click
I have tried using ShellExView to disable all 3rd party context menus, as has been suggested as a remedy for this problem, but this does not change the behaviour.