Recently Vanguard's Growth of $10,000 graphs have not been coming up for me (click here for example). Just a big white space where the chart should be.
It looks like it is Flash of some sort. I had some trouble a month or two ago looking at similar Flash graphics on their mutual funds pages. Mine works fine now (firefox).
I can't get it to appear consistently. It worked once today, via the link above, but no more. I've installed the latest Flash player, and disabled ad blocking, even installed Firefox. No joy.
Reinstall flash from the macromedia web site. I've had some quirks on occasion where flash would work sometimes and then not work later. Reinstall fixed it.