A family of Microsoft word processing software products for creating web, email, and print documents.
Hi,
Thanks for using Microsoft products and posting in the community, I'm glad to offer help.
According to your description, I tested with different versions of Word and I got the following results:
1. In Current Channel, version 2012, I can reproduce the same situation, clicking the arrow will open a pop-up window.
2. In Current Channel, version 2011, it works as you are used to, and there will be no popups when clicking the arrow.
Reference: Release notes for Current Channel
PS: you can go to Files> Account> Product Information>About Wordto check your version.
Since you said the problem "suddenly" appeared, the cause may be that Word has been automatically updated to version 2012 recently. If that is the case, you can send feedback to Office to let the relevant team know that you do not like this change: How do I give feedback on Microsoft Office?
Andif you want to go back to the olderversion(which we do not recommend it), you can use the Office Deployment Toolto install specific version of Office, for more details, you can refer to Overview of the Office Deployment Tool, or posting a new thread.
Hope the above information can be helpful, and please feel free to let me know if you have any concerns.
Best Regards,
Arck