2.9 Freeze on OSX

[M Koob]

I have had this issue with saving stacks and I agree it seems to be
random.  I am using a 15" MacBook Pro (Intel Core 2 Duo 2.2 GHz). I have
read over the posts in this thread to see if there are any clues.  Some
of the possible causes that have been suggested don't apply to my
situation.

I have tried to eliminate any of the issues that have been raised as
possible factors and I still get a crash randomly.

I don't think Login items are an issue -In my regular user account I
have only two login items 
  -Snapz Pro 
  -itunes Helper

I don't have any of the software installed that others have mentioned
namely 
  -EyeTV plugin 
  -USBOverdrive 
  -xKeys iKey 
  -iStat 
and yet I still
get crashes so I don't think any of these is the real culprit.

After reading the posts about corrupt preference files and permissions,
I created a brand  new user account to ensure new preferences files were
created.  I also ran disk utility to repair permissions. I doubt it
would be permissions anyway since most of the time the files will save
without a freeze.  The freeze is random.  Also as a basic form of
versioning I continually make duplicates of of my revolution stacks in
the Finder  and rename them with a higher version number and then open
these and work on the new file.   These files should have their permissions set
correctly as the user that created them in the Finder is also the one
opening and saving them in Revolution Studio.   I also ensured that there were
no login items in this new user account.  After working must of the day ii
this configuration I got another freeze.

One interesting thing is that the freeze is not a total system freeze.  
It is just the video that is frozen and Revolution is hung,  and the 
keyboard is not responsive ie. can't force quit with key combo.  Other
processes and apps continue to run in the background.   I can login to 
the frozen Mac Book Pro remotely with terminal running on another Mac 
that is on the local network and run commands line commands to
look at running processes ie. top and ps.  I can also 'kill' Revolution
remotely from the command line but that does not allow me to use the Mac
again, the screen is still frozen.   I can also issue a command to
shutdown remotely and the Mac shuts down.

I have used Revoultion studio 2.8.1 prior to this to work on my
application and never had any freezes.  This only started happening with
2.9.  The stack that I have been working on has 3 Players that play
quicktime movies, One of those players is in a substack that is opened
as a palette periodically.  I wonder, since it seems that it is the
video that freezes, if it is something to do with the quicktime movies. 
Another possible  issue is that the stack is larger than the Mac Book
Pro's display.  The application is targeted for a 20" iMac but I develop
on the 15" Mac Book Pro so portions of the stack windows are off screen.
  Again this was the case when I was working on the application with
2.8.1 so it is a new issue with 2.9.

I won't be going to Runrev live this month but I  hope that someone who
is experiencing the freezes is going and can demonstate it to the
developers.

I am using the workarounds suggested (such as saving by script instead
of with the menu or key combination) to avoid the crashes but it creates
extra work and sometimes you slip up.

Hopefully there will be a fix for this soon.

Martin