when you start mediaportal in fulscreen moden and switch then to windowed mode, the gui gets distorted and starts to blinking.

h4. Steps to Reproduce
configure medieportal to be started in fullscreen

1. start mediaportal
2. ALT + ENTER
3. MP is displayed in windowed mode. gui is distorted and blinking

see attached screenshot.

note: it doesnt happen always. when you try it 3 times, you should get it at least one time.
just got it 5 times in a row.

h4. Additional Information
confrimed by tourettes and ronilse.