Has Ribbon - ReadOnly depdency property

We have run into the case where the RibbonWindow HasRibbon property is becoming false, but there is a ribbon in the window.

What conditions trigger the HasRibbon property to be false. We are running into the issue where the Quick access tool bar is being overlayed by the window label.

Here is a snippet of the style that causes the issue.

Any advice on what may be happening here?

<Trigger Property="HasRibbon" Value="false">
<Setter TargetName="PART_TitleBarTextShadow" Property="HorizontalContentAlignment" Value="Left" />
<Setter TargetName="TitleGlow1" Property="HorizontalContentAlignment" Value="Left" />
<Setter TargetName="TitleGlow2" Property="HorizontalContentAlignment" Value="Left" />
<Setter TargetName="TitleGlow3" Property="HorizontalContentAlignment" Value="Left" />
<Setter TargetName="TitleGlow4" Property="HorizontalContentAlignment" Value="Left" />
<Setter TargetName="PART_TitleBarText" Property="HorizontalContentAlignment" Value="Left" />
</Trigger>

[Modified at 11/04/2011 05:56 PM]