Looks like when I originally adapted Drums's code I didn't fully test it and had all the parents one level too high (Basically left it as in the snippet instead of properly adapting it for onShow). I have a feeling I edited my uisettings for my old server to test it, which magically would make it appear that the window was moving properly when it had never been off screen in the first place
I've fixed eq2ui_examine.xml now so it should force it to a valid screen location if it's fully off-screen. It'll be included in whatever the next release is, and I'm attaching it here as well. Penebo, download the updated file and put it in your Fetish 12.4 directory (overwrite the older file already there) and it should hopefully fix the window appearing off-screen.