luv2chill, are you using something more recent than RC4? We don't have that control panel, at least not in the default list of "Settings". Maybe there's a way to enable it.
For everyone else, you can make the regedit:
Code:
[HKEY_LOCAL_MACHINE\HARDWARE\OEM\KEYBD]
"KeyLock"=dword:00000001
or you can use the utility posted by luv2chill in the next post in order to have the button lock in RC4. According to the bugtracker this has been fixed since RC4 was released, which is why I'm wondering if lu2chill is using a more recent, but not-yet-released version?