I am very new to Logos.  I just downloaded A4 on Friday and I'm playing around with it as much as I can.  I understand Logos 4 Mac is very unstable since it is just an Alpha test.  I just want to give the developers a heads up that I had a severe software problem on my mac yesterday morning while trying to access my computer.  I couldnt even load OSX.  Thinking it was a hard drive problem, I took my computer in to the Apple store but they couldn't find the root of the issue.  I have my computer back up and running but the only abnormal activity on my Macbook in recent days has been loading A4.  In fact, everything else is very stable and I take great care of my machine.  I am beginning to think A4 may have had something to do with the OS failure.  I may be completely wrong and I'm not even upset, but I do want to make you guys aware as you continue developing the Alpha releases.  If I'm right and A4 caused the issue, I know you would want to check it out.  I know there is a long road ahead for you guys and I appreciate the hard work.  I look forward to seeing the final product in the next few months.  In the meantime, I'm having the previous version of Logos shipped!
In His Grip,
Matt 
P.S - Other issues I'm seeing seem to be the same as others - perpetual indexing, can't search, locking up and shutting down when opening resources or accessing the library...