Fishgutter and macuser, my MacBook is 18 months old. TT 20 worked fine on it last year. I followed instructions and painstakingly removed those hidden library files and reinstalled on my primary user account. Did not work. AND it corrupted TT21 on my second admin user account that I created today with tech support so that I couldn’t open TT 21 on it either. I deleted that user account and created a THIRD admin user account. I reinstalled TT21 on that account and it’s working on the new user account. Very very dissatisfied with TT 21. Praying I can finish and file my taxes before the software crashes again. Thank you for your suggestions and advice.
