First, I LOVE MediaMonkey!!
Second, I am very glad to find this thread because I too just experienced MM splash showing up and immediately disappearing.
I installed the latest QT and now my beloved monkey is working again.
I had just started uninstalling some apps because my hard drive is running low on space. I didn't uninstall QT, but I did uninstall Apple Software Update and Apple Application Support. I don't use QT, I don't use apple products, so I thought this would have no impact.
What I would like to know is, WHY IS MM SEEMINGLY DEPENDENT ON HAVING APPLE SOFTWARE INSTALLED, such that it will not operate at all without QT installed or even listing it as a prerequisite in order to run at all?
Thanks to all those who uncovered an easy fix to this problem.