Just what the subject line says, Premiere CS6 won't load up past the splash screen and "Loading ExporterQuickTimeHost" after I updated to QT 7.7.3 (Win7). No other updates done, my CS6 is up to date. I reverted back to 7.6 and problem went away. Just an little word of warning to those who see the update pop up.
If you run into the problem, here's the link to download 7.6. You will have to uninstall 7.7.3 then instal 7.6.