WordPerfect: Tools > Spell Check doesn't work

Symptoms:

Clicking on Tools menu > Spell Check in WordPerfect opens the Spell Check docker, but the document isn't spell checked.

Causes:

1) Spell check may not be set to check the entire document

2) Spell check may be disabled in all or part of the document

Resolutions:

1) Spell check may not be set to check the entire document:

1. Open the file to be checked
2. Click Tools > Spell Checker...
3. Near the lower right corner of the Spell Check window, set "Check" to "Document"
4. Click "Start" at the right

2) Spell check may be disabled in all or part of the document

1. Open the file to be checked
2. Click Edit, Select, All
3. Click Tools, Language, Settings...
4. Place a check next to "Disable writing tools in this portion of text"
5. Click OK
6. Click Tools, Language, Settings...
7. Remove the check next to "Disable writing tools in this portion of text"
8. Click OK
9. Retry spell check by clicking Tools > Spell Checker...