DInput8 Screws Up

I got DirectX 8 SDK (C++ only), and have found some major problems with DirectInput. I want to stress that it isnt my code, the SDK samples do exactly the same things. Numlock always gets turned off. This is really starting to piss me off. When I try to use the keyboard in exclusive mode (buffered or not), after pressing any of the following keys as total of 64 times (128 up/down events), ALL of those keys refuse to send any more event messages: Arrow keys, Power keys, Ins Del Home End PgUp PgDn, SysRq, Win keys, That menu key (Win98), the right Alt and Ctrl keys, and the Enter key on the number pad. Is this happening to anyone else, or is there some oddity in my computer? Any other problems that I haven''t found yet? IO_FissionSig();