Try reinstalling your Apple Quicktime software.
Okay, I know whats the problem now.
Im missing CUDA 5.0
Theres a fix for this, I need to add my Graphics card to the ''Supported Cards''
But i have my Graphics card built in my motherboard.. And it still doesnt work.
I reinstalled quicktime 2x but it still doesnt work! PLEASE HELP ME
You don't need CUDA. You don't need to add your graphics card to the supported cards list. This is all unrelated to the QuickTime issue. Those two things are related to the outdated and obsolete ray-traced renderer.
In fact, if you don't have an NVIDIA graphics card, you shouldn't try to install CUDA as it can cause issues: Avoid installing NVIDIA CUDA drivers on computers without NVIDIA GPUs
What version of QuickTime are you installing?
What OS do you have?