[cd34]

in index.php try removing the @ from this line, it'll tell you what the error is.

$rss = @fetch_rss('http://feeds.technorati.com/cosmos/rss/?url='. trailingslashit(get_option('home')) .'&partner=wordpress');

My guess is that the server you are on cannot resolve that name for whatever reason. It is interesting that recently there was a registrar change on that record, but, they have enough nameservers that I cannot imagine why it cannot resolve.

At worst, try


$rss = @fetch_rss('http://209.237.226.237/cosmos/rss/?url='. trailingslashit(get_option('home')) .'&partner=wordpress');

or comment out the line completely. its a counter that shows wordpress how many times you have logged into the admin and does the version check to see if you are running the most current version.