Quote Originally Posted by GAM View Post
Hi

I've identified the problem... active template not set correctly. Sorry for wasting everyone's time. Hopefully this helps someone else out in the future in similar circumstances.
[Interesting though how some IH functions were activated/deactivated by the Image - Use Proportional Images on Products and Categories configuration setting]

I'm not used to having more than one template on my site and somehow managed to have 'English' set to the new template and Default(All) set to the old one.

Preliminary testing indicates that IH4 is now functioning correctly on my site. There are some other curious little quirks that I need to investigate but probably my fault again.
IH4 works for normal store setups.. Your setup is unique and therefore as you discovered IH4 appeared to not be working when using a non-standard template setup..