sorry for the delay Interskill. i had an online chat with christiano who was quite helpful.
he removed it for me, though whether this affects security on my site, I’m still not sure.
righto, it seems my host (eukhost) has recently installed mod_security.
Oops. Just checked – seems to be happening on all WordPress installations now.
I should mention that the posts do seem to be changing, but I still get the error message
