CComboBox not skinned with ApplyWindow()

Hi, how do you get combo box drop down scroll bars and line highlights to skin when using SetAutoApplyNewWindows(FALSE) ?

I'm using the SetAutoApplyNewWindows(FALSE) option to skin individual views and dialogs which is working so far, but generally any CComboBox controls fail to skin when dropped down. i.e. the combos edit box and arrow are skinned but the list and scroll bar dropped down after pressing the arrow do not get skinned.
This does not happen (i.e. it works) if you skin the complete application in one go by passing TRUE to the SetAuto... function.

I've reproduced this in the SkinMDISample app by adding XTPSkinManager()->SetAutoApplyNewWindows(FALSE) to CMainFrame::OnShemaChanged() and XTPSkinManager()->ApplyWindow(this->GetSafeHwnd()) to the CSkinPropertyPageThemes::OnInitDialog, along with adding a combo and populating it with shed loads of entries. On changing to any of the skins, the combo drop down fails to get updated. I can upload the project if needed.

Is there a simple call I'm missing to get this working?

Thanks.