The creation of intermediate pictures has been set to "off" for quit some time. However, I have been noticing some users have been adding some extremely wide or tall pics. Is there a way to set creation of intermediate pictures back to "on" with a certain max height or width without messing up the way the entire gallery is seen?
yes, enable it in config, then use admin tools and choose the option "Update thumbs and/or resized photos (1)" with the radio button set to "Only resized pictures". You will have to do this for every album in your gallery though. This will create intermediate pics for all files, based on your current config.
Joachim