Windows 7: smartscreen filter

This service has been down now for me for days if not weeks, I started noticing it when started testing IE9 again and since then its not been up for me at all on IE9 and is rarely up on my IE8. The IE9 pc has default windows 7 firewall settings enabled. This machine also has windows 7 firewall control with outbound filtering. But I get no logs of blocked traffic when using it.

So any ideas whats wrong, is it actually down? does it need something special open on firewall? or does it look like I have some other technical issue?

Hey for me it has been down for atleast 3 days. However for me it's IE 8 (I hate IE9, even rolled my laptop back to 8). My laptop I can't remember when it was on IE9 if it was on or off, but now that it's back to IE8 it's not showing if it's on or off. But on my desktop it has been down for atleast 3 days, and I have reset my rig multiple times so it's not that.

Also I am running Norton 360 (newest version and up to date) on both systems. I would like to know what's up to