I've been working in software for long enough to know that when a client says that there is a problem, then there is a problem. Having said that, I've just run through all the procedures I could think of to create the failure being described, and all I could get was either the correct results, or an "incomplete copy/paste" message. When you say that you couldn't progress past the disclaimer, I think that must mean that there is no data being created, because normally the disclaimer is just the first line of the translated weather report that you want. Dunno, but I'll keep thinking...
While I'm at it, Ian, I think that the link into the ARFOR on the PilotTools/Weather page is no longer working now that individual logins are required.