Why popup box need confirmed twice?

[email protected] (Nicola Mettimano)
Newsgroups alt.bbs.mystic
Organization Agency HUB, Dunedin - New Zealand
Message-ID <[email protected]> 
Hello g00r00 i have a strange problem...:
https://www.dropbox.com/s/3x13xu8cg7zgm89/video.mp4?raw=true
as you can see in this video when i am under standard menu (in this case 
message) the box work as expected, it appear and when i press a key it 
disappear but when I am on Index genera I need to press two key because the box 
appear twice... do you know what could be the reason?

Many thanks.
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