Here are two Screenshots to help give you an idea of what is happening.  My desktop is set to Windows Classic theme and I am running XP as my OS.  The first screen shot shows the title in the correct location in the iddle top "New...rcp - Radar Cov.erage...". The next screenshot shows what happens when that title changes wether it be creating a new file or what not anytime that title is changed it leaves remnants of what looks to be the classic style window in the ribbon area.  Sometimes its the window controls on right side sometimes the Title, and soemtimes it just leave the border of the window in the ribbon area it differs.  In my xaml.cs code I am setting the xamribbonwindow.Title based off actions such as making a new file or saving.  Attached are the Screenshots hopefully they help if you still end up needing the actual files I will see what I can do. I most likely will have to take some time to strip some stuff out.

Thanks for the reply and any help you can give me.

Here is the correct behavior the next post will show the incorrect behavior.

Here is what happens when the title changes in Windows Classic Theme.

Has this issue since been resolved?

Hi again,

I am indeed seeing this issue occur with both the WPF 8.2 release build and with the recent hot fix, so I will be opening a suppport case for you and submitting your issue to our Development team.  You will receive your next notification from me via email once the support case is created.

Thanks,
Francis

Thanks for the screenshots; they might be enough to go on.  I'll get back later today or on Monday.