But the problem isn't consistent. Sometimes you can really use a glyph as it should be. Another time in the beginning everything looks good. After an hour working on other components and code the glyph is suddenly corrupted. Because of saving the project inbetween?? And other times the glyph suddenly had vertical stripes - and the glyph with lime background turned to lime-green-lime-green ... stripes.I have never seen this. Returning to the idea with the 16-bit-per-pixel images: Are the images affected 16bit images too? To check load the image into IrfanView or some other picture viewer - there is a menu item for "image properties", "image information" or similar. Or write this little code: