Space between php files (div's)

[rprmatias]

Hello I'm having a problem with my site, I have the "header" and "navigation" in PHP separated files but when I call them, <?php include('header.php'); ?>, <?php include('navigation.php'); ?>, between them I watch a blank space, and I can't remove it, any ideas?

Thanks

Rui

[Maven]

It would be helpful to see the code, kinda hard to solve a problem we can't see.