Apparently screenshots directly to the Screenshots/User folder only works if the aspect ratio in the game video options is the same as the physical screen (4:3 , 16:10 etc) If it isn't (as in my case), the aspect ratio correction can be disabled by changing the line DisableAspectRatioCorrection=0 to DisableAspectRatioCorrection=1 in the DragonAge.ini file - I tried this and it solves the screenshot problem, but not surprisingly circles now appeared as ovals, so I changed it back and decided to make do with pasting from the clipboard!