Thank you for your post.
Without seeing your calculation, it is difficult to determine what is the cause of the Web Viewer not displaying Google Maps.
Community member "schamblee" has provided an example file that I would recommend downloading:
Thanks for reaching out! I reviewed schamblee's example and I believe I using the right calculation which I pasted below. Again, when I open layout everything but the map shows up. Then I can make the map show up only when I manually add Status Bar or Ruler to the window.
"http://local.google.com/maps?" & "q=" & /*Address=*/ Clients::Street1 & "," & /*City=*/ Clients::City & "," & /*State=*/ Clients::State & "," & /*Zip Code=*/ "" & "," & /*Country=*/ ""