Would anybody suggest a solution to my numlock problem???

A few DAYS ago I had to plug in usb drive to be able to use a p/s2 keyboard in my windows xp laptop because my cousin would BREAK my laptop keyboard playing games if I didn't.
I made sure the num lock was off before I put the keyboard away. I even double checked. My keyboard was working just fine then.

But now everytime I START up my computer, my numlock is automatically on. I need it to be off!

I have to keep plugging in the same usb drive and p/s2 keyboard to turn the numlock off. I tried turning off the numlock with the laptop keyboard beforehand and unfortunately it didn't work.

I already disabled it in the registry editor using "0". And yet everytime I have to log on, the still numlock's on. It's getting pretty annoying having to plug in the key board just to log on my computer.

Any suggestions or helpful tips would be greatly appreciated!have you checked your BIOS settings?Yes, I turned numlock off on my BIOS Settings too. But after I save and exit, it's still on.Any other suggestions?I found this:
http://www.activewin.com/tips/reg/bootup_3.shtml

However, before editing the registry, I suggest CREATING a System Restore Checkpoint.