Did you check the right-click context menu and made sure that "Check Spelling" has a checkmark? Do you have a dictionary installed and selected? ----- The spelling checker is enabled if [X] "Check Spelling" in the right-click context menu has a checkmark. You can see which dictionary is selected if you right-click in a text area and open the Languages sub menu. At least one dictionary should be installed and have a check mark to indicate that it is selected. *open the "Add Dictionaries" link to install a dictionary if you do not have one.