I need help troubleshooting an installation.

hello, i just installed php4 on my machine for local testing purposes. i have edited the httpd.conf file of my Apache server to point to php.exe and when i open a page with the .php or .html extensions that has this code: <html> <body> <?php $myvar = "Hello, World!"; echo $myvar; ?> </body> </html> nothing displays in the browser window. i don't want to learn anything else about php until i can get this simple script to work. what might i be doing wrong? -- Shane Aldrich Graphic Insight 3014 N. Hayden Road Suite 114 Scottsdale, AZ 85251 480.423.3524 FAX 480.423.1987 www.graphic-insight.com