I just found another bug that only appears in the svn 1.20-trunk.
Steps to reproduce:
1) Start Mediaportal 1.20 in Full Screen
2) Start MyTV or just start any Video.
3) Go back to home screen - don't stop the playback of TV/Video
4) Start MyPictures
5) Click on any picture that you want to see in Full screen
= You don't see a picture. If MyTV/Video is turned off, everything works fine.
Steps to reproduce:
1) Start Mediaportal 1.20 in Full Screen
2) Start MyTV or just start any Video.
3) Go back to home screen - don't stop the playback of TV/Video
4) Start MyPictures
5) Click on any picture that you want to see in Full screen
= You don't see a picture. If MyTV/Video is turned off, everything works fine.