My system is still 98, so the problem might not be system related.
I re-loaded CC 133.382 but the problem persists, intermittently. I then checked the Add Remove list as Mutterer suggested, but it showed correctly. Then the next day the list was displaying again. What I noticed was that after heavy web surfing & or with multiply IE windows open the list field comes up blank. After closing out all the IE windows, or when the computer is first on, I find the list is visible.