Problem communicating with WP_CRON: couldn't connect to host

Hi

I am having problems installing Autoblog. When I install it, I get the following message:

Problem communicating with WP_CRON: couldn't connect to host

and no feeds will process. I have installed it on other sites (different hosts) and it has worked but I cannot get it to work now.

I raised a query with my web host (Heart Internet) and they replied:

Is the plugin trying to do a 'loop back connection' - ie opening a URL on the same server over HTTP?

If you're not sure ask the plugin developers, however if so this is forbidden on our hosting and the plugin will need to use the full server path instead.

Are you able to help?