Just noticed this tonight, since going to larger pictures on the homepage a bizarre thing has started to occur.  When looking at the homepage for more then 10 seconds, the pictures in the category fields blank out and are replaced by white squares of the equivalent size.  One picture in each category remains however, and always the same pic.  This does not change even if I sign in/out, reboot explorer or reboot my computer for that manner.  In the morning when I get home I will see if this is also occuring in firefox.  Anyone else notice this or is it perhaps the odd filtering playing tricks on me at work.