The @var{count} argument can be a cons cell, @code{(@var{cols}
. @var{lines})}, instead of an integer. Then the function moves by
@var{lines} screen lines, and puts point @var{cols} columns from the
-start of that screen line.
+visual start of that screen line. Note that @var{cols} are counted
+from the @emph{visual} start of the line; if the window is scrolled
+horizontally (@pxref{Horizontal Scrolling}), the column on which point
+will end is in addition to the number of columns by which the text is
+scrolled.
The return value is the number of screen lines over which point was
moved. The value may be less in absolute value than @var{count} if