Thank you to everyone for your assistance.

I found the root cause: iptables. When I service iptables stop, the stylesheet works.

Any idea what entries are required in iptables to get the stylesheets to operate with iptables on?

yellowled wrote:This definitely looks like a failed or incomplete update, maybe incorrect permissions (which could also explain the missing stylesheet, which probably is responsible for the blank backend).

YL

How do you resolve those permission issues.

When I run the Verify Installation Integrity script I get these results.... Verify Installation Integrity htmlarea/examples/files/Extended.html corrupt or modified: failed verification htmlarea/examples/files/ext_example-menu.php corrupt or modified: failed verification htmlarea/lang/fa.js corrupt o...

OK. I retried the upgrade to Serendipity 1.6.2. It is upgraded, but still no style sheet. Still plain jane.

I believe this was due to an auto-update. Now that I think of it, I had fixed the gateway address of the network card. That must have permitted the auto-update to start working. Since I first posted this I tried downgrading php which didn't help. So I figured I would go in the opposite direction: up...

This is a box I host in-house.

I have ran "yum downgrade php*" until I can go no further. Reboots in between.

All I get is Times New Roman. The formatting isn't working. Everything was fine. Then it turned up this way one day. A restart doesn't help.

I am not a web guy. I am a security-infrastructure guy. So excuse my terminology.

http://s18.postimage.org/bcd8thl09/serendipity.png