[Macsee]

Simon, that's a thought, but wouldn't a messed up htaccess affect all attachments including all that I, the admin, make? There is no cPanel on my server. Thanks for the suggestion though.

Lynne, I have seen a fair few complaints here, elsewhere and in vbulletin.com (in fact, one of their developers' attachments - posted in a thread about missing attachments, ironically - went walkabouts). I didn't save all the URLs but there were several.

Incidentally, I'm not on a shared host, it's a dedicated Linux/Apache box (and, yes, without cP). I've disabled EasyForms now and have only GlowHost and ThankYou. I dislike modding for precisely this reason - muddying the waters when it comes to troubleshooting - so no custom mods, not even our own skin. We use default vB.