
The above should be a screen-dump of an IE screen - but I have not done this before in a post so may not have worked...
For some time now I have noticed that from time to time drop-down menus no longer expand when clicked. For example in IE (11 as in the image) I use both the menu bar and favourites bar. If I left-click on 'tools' (Menu Bar) or on any of my favourites folders shown on the toolbar the menu that would normally appear does not appear. The item clicked is highlighted but no sub-menu is shown.
Interestingly the same symptom appears if I right-click a taskbar icon. With Word (for example) right-clicking the taskbar icon gives a list of most-recently-accessed files. When the problem appears there is no list. If I minimise all running apps so that all I can see is the desktop then I see the taskbar icon submenu when I right-click.
The workaround is to reboot. The problem then goes away until the next time I click and don't get a submenu.
Google searches are probably hampered by the fact that I may not be using the correct windows terminology as search keywords - I have not been able to find any report of this issue.
Any pointers appreciated 8-!