This was reported by Kidman here:
http://kmeleon.sourceforge.net/forum/read.php?f=2&i=3517&t=3517
I just installed K-Meleon 0.9beta3 and recognised some small things:
...
- in "View -> Encoding" the actual encoding/option being used at the moment is not marked in any way
This has been marked "Closed" on our Beta bugs page based on this from Ulf:
"Can't Fix - We have one menu for all windows while the encoding is per browser view. - Ulf"