How to draw to a buffer?

Example, say I have some scrolling text comming across the screen, and I want to have it wobble - much better to have it set to an imagebuffer and then using DrawImageRect to give a much better sin/cos with. It how iver always done it, and it vely hard to do alot of things without setbuffer. I even tried grabimage a lot of times and it just crashed the program. for no reason at all.

Just a small plea, stick it on the list!