ATI AiW Radeon resolution problem

[DMC2]

Hi, just got me a ATI AiW Radeon 32MB DDR AGP 2x/4x, installed it OK, using it now but when I try to set the resoltion to 1026x768, everything's too big to fit on the screen. When that's the case, I have to move the mouse to the edge of the screen to scroll along.

Is there a way for me to use the Higher Resolution without having to do that?

I've been using 1026x768 before I set up the card.

Thanks