SimpleMenu Disappears
There following are a few of the main reasons why SimpleMenu disappears.
Pop-up Windows
By default, SimpleMenu wants to hide itself in pop-up windows. This is a feature.
The reason is that many websites will open pop-up windows for all kinds of extra-features such as uploading an image or printing some description of an image or the definition of a word or product.
These windows should not include the SimpleMenu bar.
There is a dedicated page giving several different ways to fix this problem on your website.
Menu Overflow
Image may be NSFW.
Clik here to view.
Very long menus will disappear on the
