1. Open some file and change to HEX view. So far so good.
2. Edit some other open file (other tab)
3. Go back to the file in HEX view from 1). Now it looks different! I have not done anything!
Notepad++ 5.1.4 (Unicode)
Just to clarify... The file itself has not changed in 3)... it is just the "view"
Ok, I found out a way to deal with this. Just click twice on the "H" button (View in HEX). That triggers a refresh in the view.