How to Show bitmap image in Tspeedbutton when it is in disables state

[Syamala]

I am dyanamicaaly creating speedbuttons in tab change, i want to made speed button disabled , when it is disabled it is not showing the loaded image. how to see the image on speed button when it is in disable state. I am using the code
SpeedButton,Newimage.Glyph.LoadFromFile('Path')

[Norrit]

works fine with me:

procedure TFormKOCExport.Button1Click(Sender: TObject);
begin
  SpeedButton1.Enabled := not SpeedButton1.Enabled;
end;

procedure TFormKOCExport.Button2Click(Sender: TObject);
begin
  SpeedButton1.Glyph.LoadFromFile('C:\temp\attachment.bmp');
end;

Image is a 16x16 bmp with background color filled out, but obviously this becomes transparent
This code is so straight-forward that i'm guessing the problem is in the bitmap itself