Mellel 3.5.2b2 on MacOS 10.12.1 are my versions on a MacBook Air. I had downloaded 6-8 templates and some stylesets from the DTS Mellel group and SBL over the past two years and customized one (for papers where I attend school) in Turabian style. I have not created a new Mellel document since September of this year. Today, when I opened a default template at launch, my custom downloaded templates are not there. Is there any new configuration or lost link to templates that occurred with Mellel or MacOS updates in the last two months? Where would you suggest looking? I did not deliberately trash any of them.