CView styles. Still look like WinXP/Win7 even on WIn 8.1?

[AndersG]

Hi!

This is an MFC app that started its life in VC6, currently on VS 2012 and when going to Windows 8.1 I noticed that dialogs (all windows descending from CDialog) have the Win8 look and feel, but Views (Windows descending from CView or CRecordView) still has the Xp/Win7-style. In Windows 7 the app has a consistent look.

Ie, the border colour and max/min buttons.

Any ideas where I should start digging?

[AndersG]

OK. Digging further. Exactly the same happens when I create a new MDI project from scratch in VS2012. The app window has the Windows 8 look and feel, but any child windows (File, new) will have a Windows 7/Xp look and feel.