After I change an account detail I can't save as the 'save' icon does nothing. Why is that?

Hi there, 

Glad to have you join the QuickBooks Community. It's vital you're able to navigate the program with ease. Don't worry, I'll be happy to help so you can save the account detail with your changes. 

 I suspect you may be experiencing browser-related issues that can cause issues such as the one you've described above. Clearing cache and cookies helps with fixing most browser issues. You can do this by following the steps in this article: Clear Cache and Cookies. I encourage you to give this a try on your browser when you get a chance. 

Feel free to let me know what happens. I'll be here in case you have other questions.