Images only visible to specific role

Many thanks for the quick response, but I'm not sure it's the same issue:
- the original report in http://drupal.org/node/158094 says that the images were only visible to user 1 - that's not the case for me; other authorized users can see them
- I've disabled the core Upload module, and that hasn't fixed the problem

I've tested this some more and it's not just an issue of whether you're an authorized user or not - the images are only shown to user 1 and members of the KV role. If you're an authorized user but not part of the KV role, the effect is the same as if you're an unauthorized user - so I've changed the issue title to reflect this.

I'm having the same issue on another Drupal implementation on the same server, and that actually won't let me disable the Upload module - although I've disabled, deleted and uninstalled the Image module, it's still claiming that Upload is required by Image. Don't know what's going on there.

Would it be worth trying the dev version of the module?

No I don't - see the attached site documentation which lists the modules used.

However, I have been doing a lot of experimentation on this site, so there are a lot of modules which have been there in the past but aren't now. They've all been disabled and uninstalled and I've used the devel module to clear the cache, but I don't know if something may have been left over.

Thanks, but there's no "view uploaded files" permission on my access-control page - perhaps you have it from some other module?

Well, it might be related - I rebuilt everything from scratch on a new site without the upload module and found that I was having problems with unauthorized users being unable to see the images until I changed the binary-download mode from drupal-only to general HTTP.

I'll have to rummage around with it some more, but I seem to be able to work with it in the meantime - thanks.