Dear Freesurfer experts

I am new Freesurfer user, I used the command: tksurfer fsaverage lh inflated -annot aparc.annot

In the graph showed in the window are only the vertices, not surface, see the figure in the attachment.

how to displace the surface in the window, which operation do I need ? (I tried the differerent option in the manu ''View", and I didn't get the surface)

Thank you very much

Shugao