Selecting the Cover Flow view from within Config doesn't switch to the view, but stays in the default view.

h4. Steps to Reproduce
Steps to Reproduce:
1. Enter Configuration and expand Music->Music Views.
2. Select a view.
3. Set the 'ViewAs' column to Coverflow to one or more of the levels with-in the view.
4. Click Save.
5. Press OK to *really* save and exit configuration.
6. Enter MediaPortal.
7. Enter Music and switch to view from Step 2 if not already.

Result: Coverflow is not displayed but reverts to default, the following error is logged:
Code:
[ERROR][MPMain(1)]: GUIMusicBaseWindow::GetViewNumber: Unknown String - Cover Flow