Well, whenever i start AE. And and it goeas on like "loading", but when it comes on Initalizing MediaCore it stops "loading" and it doesn't start. I double click on it and it crashes. It used to work before! Thanks!
You need to provide system information. as a start, trash the prefs and manualyl flush the meduia cache. also update/ un-update your graphics driver and reinstall Quicktime. Also run the Creative Suite Cleaner Tool and reinstall AE.