<meta name="description" content="MY_IMPORTANT_HOME_PAGE_DESCRIPTION" />

[DrByte]

I do know that having made that html_header.php original to what it was when I downloaded zen cart the, problem has gone and all seems fine..

Perhaps I missed something in the dialog that's happened over several days.
Using the original code that came with the original Zen Cart files is usually the safest and most correct "fix".
That's what I was referring to when I said that it's best not to touch the html_header.php file. I thought that you'd followed a suggestion posted by someone else who was guiding you to changing that file by removing original PHP content and replacing it with specific text so that it's no longer dynamically generated when needed.

[RodG]

I thought that you'd followed a suggestion posted by someone else who was guiding you to changing that file by removing original PHP content and replacing it with specific text so that it's no longer dynamically generated when needed.

Ouch!

'Tis a useful method of having the desired effect (for the client) until more facts were known. We had no idea where
MY_IMPORTANT_HOME_PAGE_DESCRIPTION
was originally defined, or even what defined it, not to mention if something else that may be dependent on it.

There was also no assurance that the module that used the define would be reading the zencart language and/or meta files either, so the suggestion to add it to the file that contained the other define should ensure it'll be available when needed.

Of course, going back to the original zen cart install files was always an option but that would break whatever cool feature it was that the home page description deemed to be MY_IMPORTANT'

So There

Cheers
Rod