my photos must have knackered the whole system Dan
Yes! That's it!
No, but I have an update. We're "in process" toward a solution.
After exhaustive investigation at the Forum end, I found the mail problem (both for new-member registration and for topic updates) was at the server -- our old mail protocol was no longer supported by the host. Installing the new version required the host transfer the Forum offline and that broke the default theme. This sometimes happens when one component is updated. Currently, we have no links to attached photos and avatars as well as photo uploads, so we're text-only for now, and the mail links aren't connected either. There's no corruption and everything is still there, waiting to be re-linked.
Unfortunately, I'm on extremely limited comms in the mountains. I can still monitor, moderate, and administer the Forum and screen new applicants if I'm patient. However, my connection to the server times-out before changes can be made and I don't want to corrupt the database if things disconnect halfway through. Thorn's dedicated IT person is away at present, so we'll need to await his return to upload and invoke the needed repair tool while I'm dealing with extremely slow connection speeds.
Thanks for your patience. We'll be back up and running full-speed soonest.
Best,
Dan.