Vim width is adjusted to take into account space needed for line numbers from left.

vim/vimrc

@@ -17,7 +17,7 @@ set ruler		" show the cursor position all the time
 set tabstop=4		" make tabes to be equal to 4 space chars.
 set shiftwidth=4 	" for shifting by 4 when pressing tab.
 set fileformat=unix	" line ending is unix
-set textwidth=80	" 80 char text
+"set textwidth=90	" 80 char text
 let g:netrw_preview = 1 " netrw open window to the right
 let g:netrw_browse_split = 3 " open in a tab
 
@@ -187,7 +187,7 @@ if has("gui_running")
 	colors darkblue		" set color scheme
 	"set guifont=FreeMono:h12
 	set lines=50
-	set columns=80
+	set columns=85
 	if exists("+spell")
 		set spell
 	endif