bug#16647: Imprecisions with window-resizing cursors

[martin rudalics]

> Changing frame-resize-pixelwise didn't have an effect. However, everything 
seems to work fine after (setq window-resize-pixelwise t).

I think you found it.  Just to make sure - xdisp.c has this code:

  if (window_resize_pixelwise)
    {
      width = height = 1;
      goto virtual_glyph;
    }

Can you please comment it out and try once more?  In that case setting
`window-resize-pixelwise' to t should not help any more.

Thanks, martin