When you spend time editing photos and then creating an awesome slideshow in Windows Photo Gallery, it is disappointing when the slide doesn’t work. The pictures in the slideshow just won’t display.
When you try to run a slideshow in Windows Photo Gallery, Windows will use the Windows Experience Index ratings to determine if it should use the DirectX Exclusive mode or the GDI mode to draw the images. If the DirectX Exclusive mode is used, this also means that the progressive scan mode is also used. Unfortunately this can cause a problem as some displays do not support this method. Of course the problem is not common today with all the high resolution displays available today, however some people still use outdated displays.
To avoid this problem you can force Windows to us GDI+ mode instead of automatically using DirectX but it requires a registry edit.
Note: Editing the registry is dangerous and one small mistake can cause major errors with your computer and even cause it not to start.
Force Windows to Use GDI+ Mode Instead of DirectX
1. Click Start, click Run, type regedit, and then click OK.
Note If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
2. Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows Photo Gallery\Slideshow
You can also search the registry for this entry.
3. On the Edit menu, point to New, and then click DWORD Value.
4. Type WinSATSCore, and then press ENTER.
5. Right-click WinSATSCore, click Modify, type 0 in the Value data box, and then click OK.
6. Exit Registry Editor.
Try Microsoft Fix It
You can also go to the Microsoft website and try their automatic fix it support. It does have a good success rate as Windows Live Photo Gallery is one of their own.