Originally Posted by DarthParametric
It's dumping JPGs in Documents\Star Wars - The Old Republic\Screenshots\ for me. I don't recall having to enable it in the preferences or anything. Maybe check the key bindings page and make sure it hasn't been disabled or assigned to another key.
It works! I was in the habit of holding alt when i hit print screen (this captures the active window only) and that will prevent SWTOR from saving the image. Hitting prntscrn by itself automatically saves the image!