The problem with the random userpics I reported yesterday? That was due to my having installed the Firefox extension LiveJournal Hook. It has nifty little helpers, like the ability to quickly add the coding for other LJ users, e.g., pegkerr, using a right-click-accessible menu.
Of course, one of its features is that it will automatically select a random userpic for you. Fortunately, the options of the plug-in allow you to turn this off.