Well the title says it all. When ever i try to start up After Effects it just gets stuck on initializing media core. I looked on one of you're posts where it said enable a few of adobe products to be allowed on the firewall and i did but it still wont open it. Please respond asap.
Considering the wealth of information you've supplied about your system, the versions of software you're running and any ancillary cards you have have installed, here's my best guess given the facts at hand: AE doesn't like you any more. What did you do to make it so angry with you?
First, you should apologize to AE.
Then you should UNINSTALL Quicktime X and install the latest version of QT7.
What Dave said - you only have wasted 3 minutes of your time typing a meaningless post. Without any info about your system and version of AE nobody will be able to help you in any way. It's as productive as asking my mom about such things...