Hmmm, following this thread. Getting the dreaded “No QuickTime installed” error too. On a brand new Windows 7 64-bit. Thing is, there is no QTServer.exe anywhere on this Windows machine. I’m using the trial version of AECS5 to evaluate, but after seeing this problem right off the bat, I’m avoiding CS5 till this is resolved. So back to CS4 on the Windows side. Funny thing is, I’m using AECS5 on a Mac Pro at work, and it’s a beautiful thing, no problems.