.PHP3 files loading as text.

quite frustrating--i've recently set up a domain with earthlink. i have tried uploading the file below (phptest.php3), but when i read it in netscape 4 (mac), it loads as though it were a text file (all PHP/HTML tags unprocessed), and in explorer 4/5, it loads as an HTML file (PHP tags ignored ; HTML tags processed). i've tried fiddling with the permissions, and the filename suffix, and meta tags, but to no avail. earthlink claims to have PHP 3.0 running on their UNIX servers. (that's all i know). i also know that all of the browsers i am using load other PHP files fine. i would greatly appreciate help with this, as earthlink customer service won't offer any. thank you in advance.... .af. ===== PHPTEST.PHP3 ===== <html> <head> <title>PHP test</title> </head> <body> <? echo "why won't" ?> <?php echo "you work" ?> <script language="php"> echo ("my friend"); </script> </body> </html> __________________________________________________________________________ Vendez, achetez, échangez à prix ferme ou aux enchères sur www.bonjour.fr. Des milliers d'infos, de conseils pratiques et de services... www.bonjour.fr : le mot de passe qui facilite la vie !