[Plugin: Magic Fields] Mysterious Code being Returned ()

I’m using MagicFields for WordPress and I’m checking a variable to see if it’s true.

A working example is…

<?php
    if ( get('daytime_number',TRUE) ) {
        ?><div id='section_title'>Daytime Telephone</div><div id=section_detail'><?php
        echo get('daytime_number');
        ?></div><br /><?php
    }
?>

But when I try and test if a multiline variable is TRUE using the following code…

<?php
    if ( get('business_address')!=' ' ) {
        ?><div id='section_title'>Address</div><div id=section_detail'><?php
        echo get('business_address');
        ?></div><?php
    }
?>

It always returns as TRUE even when the variable is empty. In the HTML, a comment is being generated like this…

<div id='section_title'>Address</div><div id=section_detail'><p><!-- PHP 5.x --></p>
</div>

Any help or pointers you could provide me with would be greatly appreciated!

Thanks, Andy.

http://wordpress.org/extend/plugins/magic-fields/