Using Dot key on Numeric keypad also triggers the "Delete next character" action (or schrodinger's numlock)

[flunch]

Hello,
I'm using netbeans 7.0 under linux ubuntu, and i'm having a strange behavior.
When i press the "Dot / Delete" key on my numeric keypad (with numlock on) i do have a dot added, but i also have the next character deleted.
It behaves as if numlock was both on and off at the same time, kind of a Shcrodinger's numlock state ...

When i open tools / options / keymap, i notice that the "Delete next character" action shortcut is Delete (as of the classic delete key) but this action is also triggered by a numlocked "dot/delete".

Any solution ?
Thanks a lot.

[Maisondouf]

Same problem, I'd just installed 7.2 on Ubuntu 12.04 and I have shooted my keyboard


EDIT: I just see that the previous post is ONE YEAR OLD !!!
Nobody have an idea ??? really