Grooveshark won’t work! HELP!!?

that says this particular:
We had a challenge loading Thumb.You may have a Expensive blocker established.If hence, please disable the particular blocker (or add an exception) and reload to get started on listening.

concerning the brand-new flash player and i have no idea of whats drastically wrong..i employ a windows XP..help

Make positive Grooveshark can be added besides to this Exceptions tab in your firewall…and also to web options…..