Windows 7 Theme changed when playing video in Cyberlink Player

I’ve a desktop PC. My Operating system is windows 7 -64 bit. It’s a nice operating system. Gradually its giving great performance. But there is a problem. I use many player for playing songs. There are Windows media player, Media player classic, QuickTime, Vlc player, Cyber link Power DVD player etc.
Every player runs well, But the difference when I play DVD disk with Cyber link Power DVD 7. It just happen when I start any kinds of DVD video disk. It doesn’t happen when I play another video like avi, mp4, mpg etc.
I have updated my video driver but there is no change. I’m facing this problem about two years.
For your clearance I've attached some file under below. Have a look on it.
Please help me and if anyone can please include photos with your solution for my best understanding.
