17
Hi everyone...
Here's what I've learned.
1. The problem site is running on a server with 6 version 2.2 sites (my sites). None of those sites have/ had the same problem.
2. I did a complete v2.2 install after the referrer error first occured; this failed to fix my problem.
3. Next, I rolled back my site to v 2.0.13 and did a complete install of the old version, including a new DB build. That was successful.
4. I then did a complete version 2.2 XOOPS update from the clean rebuilt version 2.0.13 and succeeded.
This site is now operational and I have no idea what the problem was...