You need to make sure to refresh Intellisense Cache. There is an option in the Edit menu or Ctrl+Shift+R

http://blogs.lessthandot.com/index.php/datamgmt/dbprogramming/how-to-refresh-the-local-intellisense-ca/

>Yes. Because the test code (below) works, it returns the correct value. And I just tried the code again (I saved the script to a folder) and now the red underline is gone. I must have been doing something wrong.
>Thank you.
>