Certain sites (not all) will load quickly but not completely (the spinning wheel continues going after most of the site has loaded). The website loads fully - and the spinning wheel stops - only after a file or site called v4.moatads.com has been incorporated into the site. I suspect this is a banner or some advertisement on the main website. The problem is I am unable to initiate printing until this v4.moatads.com file has loaded and the spinning wheel stops. An example where this happens is if I try to print a crossword puzzle on the Guardian.com website. This problem seems to have started a couple of months ago. If I use another browser (such as Safari) I don't seem to run into this problem.