Why isn't my map working?

There could be many, many reasons why your map does not work.
In many cases, Plug and Play Maps will tell you why it is not working
if you turn on the "error-flagging" feature.

With error-flagging on, an alert will pop up on the screen every time
the page is visited or reloaded, just before the map is rendered. If
there are no errors, it will tell you so, and remind you that the map
will load as soon as you press OK. If there are errors, it will list them
in the alert to help you understand what might be wrong with your
script.

To turn error-flagging on in the Designer, use the "Error check"
checkbox in the "Design Settings" section (you only see this after
you have passed the name of a file to map on the first page of
the Designer). The first time you check this box, you will have to
also press the "Update" button to generate a new script with the
error-flagging set and for that script to execute in the new map.

To turn error-flagging on "by hand" (when hand-editing a script
in your HTML file, for example), add this parameter to your script:
&e=1 (as you might guess, you can turn error-flagging off by
either removing this parameter or using &e=0).

Once you get your map working, you'll want to turn error-flagging
off so your visitors are not bothered or confused by the alert
that pops up saying everything's ok.