I upgraded to 4.1 (pre-release 0) and it doesn't seem to be working on Google Chrome but works fine on Firefox. I don't use Firefox much but I do have it, so this is not a problem, it also looks more elegant on Firefox as the broken thumbnails are gone. Just something I noticed. Cacophony will come up on Google Chrome in 4.1 but all I see is the green "Load More" button.