Hi, I did manage to successfully stain the Golgi in fixed HEK cells (using wheat germ agglutinin - I had to permeabilize the cells of course). I suppose that visualization of structures always depends on the size of the cells, the morfological structure of the cell, the stage of the cell cycle in which that cell is and on how powerful your microscope is. Using a Leica inverted microscope 60X immersion oil I could not really see the Golgi stacks individually in my cells...but the appearance of the Golgi did change when I treated them with the drugs I was interested in...