Already posted this in the blogging forum, HERE but in case some of you new bloggers don’t get over there, there is a fake wordpress site around, that looks like the original, but it tells you to upgrade to version 2.6.4.
THERE IS NO 2.6.4 VERSION.
It infects your core, with a Trojan, that opens up access to the admin and back end of the blog. [B]SO BE CAREFUL
[/B]Make sure that the site is wordpress.org and not wordpresz.org and if you have downloaded & installed a version called 2.6.4 well hit the wordpress forums on what to do. IT IS COMPROMISED. :grrr: