We didn’t receive any reports from other QBO users that the Enter Check command is missing from the Toolbar. Let's try some basic web browser troubleshooting steps.
We can start with a private browser or an incognito window. We can isolate browser-related issues this way because it doesn't store data from previously visited sites. Here's how you can open a private browser:
For Chrome, press Ctrl+Shift+N.
For Internet Explorer or Firefox, press Ctrl+Shift+P.
If it's working fine, you can go back to the regular mode and clear your browser's cache. It helps your browser to function efficiently. Using another browser to access your QBO account can be an option, too.
Let me know on how things go after trying these steps, lmlemieux. If you have other questions about QBO, I’ll be here to answer them for you.