Try this:
int height = (int)border.ActualHeight;
int width = (int)border.ActualWidth;
RenderTargetBitmap bmp = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
bmp.Render(border);
border being what you're trying to save as bitmap.
Gustavo Cavalcanti
2009-10-23 18:40:46