Problem with Email Config file

[eluser]Incito Networks[/eluser]
Trying to use the codeigniter email class to send emails.

Putting the configuration as detailed in the email class user guide into a configuration file called email.php.

As soon as I do this the contents of the email.php is displayed in the header of every web page of our app.

Any suggestions to stop this happing ?

If I use a different file name it doesn't happen.