wow I could kiss you!! Thank you so much! Those figures were wonderful! Now I can mine 24/7 instead of when I only go to bed.

I threw both those values in and got:

-f100 - 197Mhash/s
-f200 - 180Mhash/s

and the Activity indicator on the card flickers around the 90% mark. Just to see that this would work the way I wanted, I let it run and then started a 1080p HD movie and the Mhash/s dropped to compensate for the movie and the activity still flickered between 80-90%. But what I love is I can now do anything while it mines.

I used to use these flags with OpenCL, I have no idea what they do - should I use them with the ones you suggested?

-v -w128

Thanks for your help - really appreciate it!