I know this subject has been started but a cursory look through the forum shows no fix. I am pretty clueless with anything technical as far as computers go but I can look through menu's on the task bar and see or find nothing relating to spell checking or dictionaries or where to find them. I run the spell checker after each email and it never shows spelling mistakes but just reading back through a few recent emails I rushed out I am seeing countless spelling mistakes the spell checker did not pick up. I don't know what to do. Any pointers would be appreciated. Thank you. Whilst I am here. I regularly get an error box from Mozilla apologising for thunderbird crashing and to file a report when in fact it did not crash and I had shut it down as normal. UK resident.