Thanks for getting back to us and providing additional details about your concern, Mercerjam.

I can help share info about the system requirements to help you run the QuickBooks Mac 2021 desktop without any issues. You can check this article to verify if you'll meet the minimum requirements: System requirements for QuickBooks Desktop for Mac 2021.

You can also check the QuickBooks Desktop Mac for 2021 User Guide to help you manage your account.

If you need anything else about managing your account or any QB-related issues, you can post them anytime here. I and my colleague will be happy to help you succeed.