Paint problems

[Ori 0]

Ok, I'm aware that it lacks in details, but that's what I have so far: Someone here implemeted a skin mechanism for an application. He uses a script and compiles it into a resource list. I'm pretty sure he used bitmap streching for resizing. The problem is this: Resizible windows that he defines as Dialogs leave ugly background color marks when resizing them. This only happens on Win9x (Inferior GDI performance?). Windows that are defined as CWnd and not CDialog do not leave the color traces. Any leads on where to start solving the color traces of the dialogs? How is Dialog resizing different from windows resizing? Thank you, Any help would be great. Ori