disappearing sprites problem

[jmiller]

I got this game (well, about 2% of one so far) and all it is right now is a map of part of a city, and i have a car driving down the road. Now, the problem is, sometimes its there, and sometimes its not. it drives me insane. I've made sure i've freed the bitmap handle and the device context, so i don't think its a memory thing, but it probably is. I've attached the project; it uses 3 classes (a car, sprite and bitmap class). I know that probably seems like a lot of overhead for nothing, but it'll help alot later in the game. anyway, try and see if you can figure it out.
thanks a million
jmiller