PHP4/Apache: .php files OK, <?php fails

I just installed PHP 4.0.4 on Apache 1.3.14 running on RH Linux 7.0 (i386) and it's all looking pretty good, except that the inline <?php tags don't work. A file ending in .php is recognized just fine by Apache and executed properly. That is, if I write a little PHP script and put it in a file with extension .php, and load that into my browser, then it runs just like it should. If I have an HTML file with some of what I'll call "inline" PHP, using the <?php ?> construct, the server & browser completely ignore it. I can view the page source and see the PHP code; it is just getting ignored as if it were an unknown HTML tag. For example, this (test1.htm) does not work: <html> <head><title>Inline PHP</title><head> <body> Some stuff before the PHP<br> <?php echo("a line printed by PHP"); ?><br> </body> </html> All I get in the browser is the "Some stuff before the PHP" line. This, on the other hand, does work when saved as test2.php and loaded into the browser: <?php $html = <<<ENDH <html> <head><title>PHP from Script</title></head> <body> <h1>Groovy PHP</h1> </body> </html> ENDH; echo $html; ?> So, I'm mystified. PHP and Apache seem to be talking together to some extent, since the .php files work. Is there something I need to do to enable the <?php ?> tags? I have tried the short <? ?> and long <script language="php"> variations with the same results. Thanks for any help! Terry McKiernan Ugly Software