With some success I did try using
~~NOCACHE~~
In a failing page, and that instantly fixed it for that user.
Here are the tests and results...
1. Page with ~~NOCACHE~~ was read ok.
Other pages with images had "broken links" still (i.e. *all* other "media" links)
2. Deleted ~~NOCACHE~~ and this page then had broken links.
3. Added back in ~~NOCACHE~~ and links were ok again.
i.e. it is reversible.
UPDATE: This is not 100% consistent after all! Another user still had the issue even though the page
had ~~NOCACHE~~.
Interestingly, when this user edited that page, then cancelled, the broken links got "fixed".
He then cleared his browser cache and restarted the browser, and they were broken again. Hmmmm...
(Again, it is worth noting, that when this happens, all "media" links get broken for a user).
Does this help narrow down the cause to dokuwiki cache-ing?
Is there anything else I can look at?
(By the way, I have tried upgrading to 2006-11-06 to see if that fixes it but get a
roadblock with htaccess that no longer works. I have to use that for apache ldap authorisation. Sigh.
I have separately logged that on the email reflector, but have had no reply. Have posted here instead
http://forum.dokuwiki.org/thread/458)
Thanks.