I have added QuickTime support toEW6. Now, when I play a mp4 video the main screen goes totally white and I can't get back to the user interface. The video plays fine. What am I doing wrong?

video = AMD Radeon 7500 series
8 gb ram
core 2 duo
Dell optiplex 760

The video card is not powerful enough; especially if it's not a RADEON HD 75xx.

[url:3jzaqtmw]http://www.videocardbenchmark.net/gpu.php?gpu=RADEON+7500+Family&id=1695
[url:3jzaqtmw]http://www.videocardbenchmark.net/gpu.php?gpu=RADEON+7500&id=556
[url:3jzaqtmw]http://www.videocardbenchmark.net/gpu.php?gpu=GeForce+7500+LE&id=39
[url:3jzaqtmw]http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+7500G&id=300

It's possible that the primary screen is set as the output for the alpha channel.
Open EasyWorship, click on edit, options and under live options change the alpha channel to disabled.