PHP script execution mode issue
I have upgraded my php from 5.3.3 to 5.4.45.
After the install, the server still served up html, but merely downloaded php scripts to my client machine.
I think I have narrowed down the issue, but I need help from this community.
I have found that switching Virtualmin/Server-Configuration/Website-Options/PHP script execution mode from the Virtualmin default of "FCGId" to "Apache mod_php (run as Apache's user)" will allow the script to be run, even though it only serves up a blank page.