Numeric Pad/Identity Shield Bug

I am using a PS2 keyboard with the numeric pad on the right side. With numlock ON, you get numbers from the numeric pad. With numlock OFF, you get arrows from the numeric pad.
 
I always leave the numlock OFF and use the arrow keys on the numeric pad.
 
If your Identity Shield is turned ON and I am using Chrome, Firefox or IE, the arrows produce numbers even though numlock is OFF. 
 
If I press the numlock key, the numlock light turns ON and OFF, but the numeric pad always produces numbers instead of arrows -- no matter what the state of the light.  In other words, the Identity Shield code is failing to examine the numlock state of this keyboard when it is examining keystrokes and forwarding them to my browsers.
 
Unless you guys fix this, I will have to leave the Identity Shield off.
 
Jay