Ed,

Thanks for looking at this. Here's what's reported by Help\About HTML Help:

hhctrl.ocx 4.72.7323.0
itss.dll 4.72.7309.0
itircl.dll 4.72.7276.0
hha.dll 4.73.8198.0

Compiled with HHA version 4.72.8086

I'm also using IE 5.00.2014.0216. I think I'll try & upgrade to IE 5.5 & see how that works, but I'm rather curious as to what's changed to bring about this behaviour.

Andy Crawshaw