Quote Originally Posted by finlander View Post
thanks again, Nigel, that makes sense, but also sounds pretty complex, I may tackle it at some point in the future. It's not critical right now, but very good to know that lightbox files need merged w/ IH in order to compress served large image. Very good to know. I'll check with Diva when I have the time to try the merge. Thank you for your time.
Actually you may want to query that on the lightbox support thread, as the version available here is an older version

There is apparently a newer version and they were discussing IH2 lightbox compatibility about a week ago on this thread here