My problem is that I can't type the sign "=" from my keyboard.
When I press the button "=" nothing happens.
I wanna say sorry if this is a nooby question, but I'm really pissed off.

The button itself works fine with Windows 7, also works when I press "Shift + =" -> "+" with my Kubuntu 11.04.

I tried with us-USA and bg-Bulgarian Traditional Phonetic keyboard layouts. The result is the same.
I tried to change the type of the keyboard -> now it's set to Generic-101key-PC.

My kernel version is if it matters.

Thanks in advance.
Petar Marinov