When I say they load incompletely, it appears the code shows on the screen, rather than the way the content was intended to display. Reloading often brings the page up as expected. This happens most often on msn.com, perhaps because it's my home page. It happens on other pages too. Simpler pages, like google.com load without issue. Is something timing out? Am running Windows 7 and IE 10 with current patches. Runs the same way on several different WLANs with plenty of bandwidth. As I write, I really haven't tried a wired connection. This has been a problem about 2 months on a 2 GB Dell D620 I've been using with a SSD for 2 years.
Running K7 antivirus - finds no problem, MalwareBytes - finds no problems.