Problem with Home

According to this topic:

I was standing in the WipEout space with friends when I noticed people coming up moving their arms but no text showing, I first thought they on my block list but soon every other person in the whole space started doing the same thing(I could see what my friends typed) , going to my apartment and returning didn't change anything. I restarted Home and when I got back in, my friends list on navigator says no friends, and was the same in pda, but my friends were still on XMB list, the original problem with not seeing what everyone typed remained what can be the cause and a possible fix, thanks.

And of course the first fucking reply is directions to uninstall and reinstall home. Shocker.