Welcome to the thread, @PCoyne.

I'd be happy to guide how to print W-3 form in QuickBooks Online (QBO). 

Let's try opening your account in a private (incognito) window. Using a safe browser and accessing the program from there can usually fix the issue.

Check out these keyboard shortcuts:

• Command + Shift + N (Safari)
• Ctrl+ Shift + N (Google Chrome)
• Ctrl + Shift + P (Mozilla Firefox) 

Once done, try to print W-3 form again by following below steps:

1. In the left menu, click Taxes.
2. Go to the Payroll Tax tab.
3. In the Forms section, click Annual Forms.
4. Choose W-3, then View.
5. A PDF form will open.
6. Choose the printer icon to print.

If it works, go back to your default browser and clear cache. See Clear cache and cookies to fix issues when using QuickBooks Online for more information.

In case you'd want to have a copy of W-3 form for the previous years, you can run and print the Tax and Wage Summary report.

For more details about W-3, see below articles:

• Form W-3: Transmittal of wage and tax statements
• How to report and print form W-3

Please know that I'm just a post away if you have any other questions about the Form W-3. Wishing you and your business continued success.