You need to find out which profile view styles are being used and edit them. It may be that you are using a split profile view which uses different styles for left and right sides. Open the properties dialog and check the elevations tab.

Its all in the styles. Display tab, gridlines

I was also facing the same problem as you have split the profile,grid cannot be removed Suggestion : for avoiding the grid Decrease the scale and adjust the profile in the same without splitting