I've been experimenting with last.fm scrobbler (don't ask...) and noticed it was blocked. I've seen the post regarding those blocks in BLM and excluded them.
http://www.bluetack.co.uk/forums/index.php?showtopic=17449

But HOSTS is somehow blocking it too and I can't figure out which domains. If I disable the HOSTS file it can connect fine and retrieve artwork and information so I'm sure there is some domain in there that is being blocked. I've found only one which is "creatives.as4x.tmcs.net".

I've searched through the HOSTS and disabled everything with .fm in it and it didn't work so whatever the domain it doesn't have those characters.

It would be easier if I had a software firewall but I don't so any help would be appreciated.