You are welcome, Witch. (That sounds vaguely deragatory!
) I'm really not smart about technical stuff, but I've been reading and absorbing a lot of this crap since Sims2 came out.
Now, I
believe that the RivaTuner applies only to the 6600 and upwards cards. I'm not about to try to tell you how to overclock your card; mine came overclocked and I've no idea how to go about it.