Show Windows 8 Start Menu on the primary monitor

I'm having the issue where the Windows 8 Start Menu shows up on the secondary monitor instead of the primary.

When booting the machine the start menu appears originally on the primary screen as it should. Sometime during the course of the day the menu starts appearing on the secondary monitor instead of the primary.

What should happen/initial settings:

Primary Monitor -> Win8 Metro Interface
Second Monitor ->Blank

Starts happening after a few hours

Primary Monitor -> Blank
Second Monitor ->Win8 Metro Interface

My Settings:

Display 1 (Primary):
 Resolution: 1920x1080
 Multiple Displays: Extend these displays
 This is currently your main display

Display 2:
 Resolution: 1440x900
 Multiple Displays: Extend these displays
 []Make this my main display

Card: Radeon HD 6950
Catalyst 12.10

It's simply because you opened the Start menu for the bottom-left corner of the second monitor. So now it always open here. I had the same problem. Just reopen the start menu from the first monitor from its bottom-left corner and it will be fixed.

You just need to never open the Start from the second monitor.