Smooth text on GIF transparent background. Help please

Hi,
I have a white text (without any effects) on a transparent background. When I save it as a .gif image and use it as a logo on a dark background, the text is not smooth anymore. What is the right parameters for saving as a .gif image for web? I mean in the dialog window when saving.

Thanks

set your matte color to the same (or a very similar) color as the background you'll be placing the text on, should solve a lot of your probs.

Thanks Fig,