Sometimes you may see your edit page menu is disabled for some sharepoint site page. It may happens if someone check out that page and didnâ€™t publish. In that case itâ€™s good idea to not touch that page until you are sure that this page is still not being edited and he published the required version. Otherwise you will be totaled :p
In this case, you have to:
- Click on Site Actions => Show Page Editing toolbar
- You will see editing toolbar.
- From Page menu click on override check out. Then you can edit this page and publish when you are done !