I upgraded my host OS from Mountain Lion to Mavericks yesterday. I'm running Parallels Desktop 9 with Mountain Lion as the guest OS. Since the upgrade, I can't get quicktime to play even plain MP4 files. It craps out with a cryptic error. Anyone else seeing this?
{edit} - I should clarify that it's Quicktime inside the guest OS that's having the problem. As far as I can tell, Quicktime in Mavericks on the host works just fine.
Last edited: Nov 21, 2013