IDE navigation issue when pressing END key?

Hey all,

I didn't use arduino for quite a while and recently upgraded to IDE version 1.6.4 (formerly I used 1.0.5). Now, whenever I'm navigating through the code and press the END button on my keyboard, the cursor jumps to the end of the code instead of to the end of the current line, which is very annoying.
I'm sure this issue has been discussed here before, but I didn't use best search terms, obviously, 'cause I didn't find anything.

Anyone here who can help me how to change this behaviour?

Greeting,
John