Using AntialiasingMode:=amOff; did not make any difference. I should have mentioned that in my original post. Dominique. On Sun, 25 Oct 2009 19:01:23 +0300, dmitry boyarintsev <skalogryz.lists at gmail.com> wrote: > You can try to switch off AntialiasingMode: > > Canvas.AntialiasingMode:=amOff; > > thanks, > dmitry