urgent problem with overlapping bitmaps in DirectX

Question

hi everyone. so i was able to study directX over the course of a week and have successfully put up moving sprite on a white background. everything's fine, it even follows my mouse input (i can drag it around). but the problem is, when it runs across a piece of text drawn on the lower left part of the screen (using drawtext), the entire program hangs. the problem also occurs when i try to paint a background via drawFast, and then try to paint the sprite over it via drawFast as well. the program hangs. i assume it could be a problem with the overlapping bitmaps, but i do not know how to remedy it. any tips? i'm short of time too, a deadline on the graphics component of our projects is coming up soon.