Video scrolling problems in duet mode

[soundwookie]

We have a duet that goes rather fast, and the scrolling re-draws cannot keep up. Usually, we are able to shift words around and such to get it so that the scroll drawing keeps up, but we have a song that it simply cannot. It just get garbled on the screen. The odd thing is that the garbling is not necessarily consistant. It always happens, just not always in the same pattern. Anywho, my question is this: Is there a way that we can increase the text re-draw? I guess it's not necessarily the scrolling that is the problem, but the rate at which it draws new letters on the screen. Is there a video buffer we can increase, or overclock the video card or somthing to get faster text rendering?