I have a user who reported this problem (using IE). I suggested that he try a different browser, but instead he got a friend to "clean up" his PC. (No idea what that means.) Afterward, the problem didn't reoccur, so that may indicate that the problem isn't specifically IE but a combination of IE and the dreck that Winbloze accumulates.
I confess, I haven't ever seen this problem even on my Windows box, but I don't use iE there, I use Chrome.