Ah, I just tried clicking on the link in my post using the Chrome browser and that gives a 404 Not Found. It works just fine in my usual browser, which is Firefox 29.0.1. I also tried it in Opera, Safari, iCab, and Cruz and it did not come up in those browsers either. It only comes up in Firefox .
So I don't know where to go from here to fix this problem. The wp-content/uploads/ contents can only be found using the Firefox browser and not in any other browser?