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.  
