Hi Paul -

I'm a little late on this thread, but thought I'd add my 2ยข.  Probably the 
easiest way get around this issue (as you realize) is probably to save a 
1.7.4.5-compatible PSE file.  But, for the adventurous, there is another way:

With a small effort (and the willingness to use the command line), your 
students with Macs can replace the older Educational build of MacPyMOL with a 
current version of Open Source PyMOL for free using the command line package 
manager, Homebrew<http://brew.sh/>.  They just need to open up Terminal.app and 
type the following 3 commands:


# Install Homebrew (run the command below, which downloads the installer, and 
follow the prompts)
/usr/bin/ruby -e "$(curl -fsSL 
https://raw.githubusercontent.com/Homebrew/install/master/install)"

# Install XQuartz
brew install Caskroom/cask/xquartz

# Install PyMOL
brew install pymol


Pretty much everything homebrew installs goes into `/usr/local/Cellar` and gets 
symlinked to `/usr/local/bin`, and shouldn't interfere with any other standard 
software.  One notable exception is that Homebrew 
Cask<https://caskroom.github.io/> items like Xquartz.app typically go into 
/Applications, because Cask handles the downloading of apps and installers and 
runs installers automatically.  Of course, you can just as easily download 
XQuartz from the project website<https://www.xquartz.org/> and install it 
manually if you prefer.

It may take a few minutes to build PyMOL and its few dependencies. But that's 
it!  Now to open PyMOL they can open a Terminal window, `cd` to whatever 
directory they want to work in, and launch PyMOL by typing `pymol`.  This would 
not only get them a more up-to-date PyMOL version, but as an added bonus, a 
little exposure to a Unix command line environment.

Hope that helps.

Cheers,
Jared




On Sep 2, 2016, at 4:24 PM, Paul Paukstelis 
<shocksofmig...@gmail.com<mailto:shocksofmig...@gmail.com>> wrote:

Are there known session issues with MacPymol? I've saved a session for
my students to look at using my linux incentive linux build and tried
various session compatibility settings (1.6, 1.74, 1.76) but in all
cases the preset scenes I've saved in the session are not loaded when
the session is opened in MacPymol (educational version 1.7.6 I believe).

Thanks,

--paul

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