[becurious]

Had this exact same problem. It was a specific color inkjet driver doing this, my guess is to enable dithering or something similar. It’s one of those things that infects everything in the code base because the way you print with GDI is to progressively draw parts of the page - so you have to call in and out of code that talks to the printer DC. We also had to render one item using Direct3D retained mode and that added to the fp control word complexity. Things seemed to be more robust on NT based OSes.