CS6 Freezing on Save Project

Question

When I try to save a project in CS6, Premiere displays the Save Project dialogue and freezes completely.  The progress bar does not begin to move.  If I click cancel, I get the beach ball.  The only way to get out is to Force Quit.  Also, if I let that it remain in the frozen state for more than a few minutes, it grinds my entire system to a halt with hard drive read/writes and eventually system memory errors (which I've never seen before).  I have 8 gigs of RAM and few things running.  It also bizarrely knocked out my system sound, which has not returned after a restart.  The volume speaker icon is now grayed out (different from muted) with no fix that I can find.  The sound thing could be a coincidence, but that seems unlikely.
The project I've been playing with was started in CS5.5.  It's a simple project, just a demo reel that I figured would be a good thing to use to test out CS6.  It has one AE comp, but nothing crazy.  So I opened it in CS6.  It converted, and I saved it to a new location.  I made a few adjustments and saved it again without a problem.  The auto save was also working.
I opened another project from 5.5, also no problems, although I didn't really make any changes.
When I opened the first project again, everything seemed fine until an auto save which froze as described.
I Forced Quit and reopened the project.  As soon as I hit save I got the same freeze.  I figured some kind of corruption had set into that project file.  So I started over with the original CS5.5 project file again.  I was able to save it, this time with incremental file names, and make the same changes.
After a quit and relaunch, I opened the project and again couldn't save.  That was the case for every one of my incremental saves. I've now gone through this cycle a lot trying to figure it out.  The only project I can open and save is the original CS5.5 project file, but if I make any changes and then close the project and come back to it, the freeze on save happens every time.
I'm not particularly concerned about the reel project, but the other project I'm working on is a client piece that I started in 5.5. I'm pretty terrified this will happen to that project as well.  I'll soon find out as I need to move forward with it.
I'm psyched about CS6.  I like what I've seen briefly, but this is obviously disastrous.
Various error messages have also popped up.  Here they are:
Premiere Pro has encountered an error.
[/Volumes/BuildDisk/builds/mightykilt/PremierePro/UIFramework/Make/Mac/../../Src/Workspace .cpp-209]
Premiere Pro has encountered an error.
[/Volumes/BuildDisk/builds/mightykilt/PremierePro/UIFramework/Make/Mac/../../Src/Applicati on.cpp-3118]
Adobe Premiere Pro
Sorry, a serious error has occurred that requires Adobe Premiere Pro to shut down. We will attempt to save your current project.
Anyone else experiencing this?  I'm running Mac OS 10.7.4.

Answer 1

I tried everything to fix the muted audio.  This is what worked,  You have to run the script every time you restart your computer.  Save it to your dock for easy access.
1. Open Utility.
2. Open Applescript Editor.
3. Copy the following and paste it at the top half of the editor (copy everything below with the quotes in place):
do shell script "launchctl stop com.apple.audio.coreaudiod" password "your_password" with administrator privileges
4. Replace "your_password" with your login password. For example if your login password is ILOVEMYSON2011 then it should look like this...
do shell script "launchctl stop com.apple.audio.coreaudiod" password "ILOVEMYSON2011" with administrator privileges
5. Now go to File ---> Save As (in the Applescript Editor on the Menu Bar)
After "Save As" choose a name for the file. I called mine "AudioFix"
Under "File Format" choose "Application."
Save it to your Applications (or wherever you like) and drag it to your dock.
Run it whenever you restart your computer. If your problem is the same as mine, the volume indicator will pop on within a few seconds or up to a half a minute after you run the script.
Good luck!