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I just downlodaded MacTeX from website below for my Mac Osx 10.6.8:

I am trying to run some older .tex files and they won't run, the message is:

Syntax error

Do you know what is happening?

Here is copy of a simple .tex file I am trying to run:



\begin{center} {\bf  Abstract} \end{center}

In the present work, we define brain to brain communication as the associated information transfer in non-local wave function collapse.  We analyze non-linear Schrodinger type equations of Benney-Roskes and Davey-Stewartson in non-linear optical systems, and ...
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closed as too localized by Joseph Wright Nov 21 '12 at 8:34

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Welcome to! A tip: If you indent lines by 4 spaces, they'll be marked as a code sample. You can also highlight the code and click the "code" button (with "{}" on it). –  Qrrbrbirlbel Oct 19 '12 at 22:51
This is probably not related, but why did you choose an old version of you TeX distribution? MacTeX 2012 is said to work with > Mac OS 10.5. (Also not related but worth a read: Does it matter if I use \textit or \it, \bfseries or \bf, etc) –  Qrrbrbirlbel Oct 19 '12 at 22:58
Well, what happened was I lost my hard drive, got a new one and then it came with 10.6.8 version. However, before this new version, I had Latex running just fine. Today, I downloaded from: –  Karla Oct 20 '12 at 0:29
I must confess that I'm puzzled by the fact that you chose to install an obsolete version of MacTeX. As another commentator has already pointed out, the current version of MacTeX is 2012. It should run just fine on MacOSX 10.6.x. –  Mico Oct 20 '12 at 6:20
Download and install MacTeX 2012, the current one that you find at and all should go well. –  egreg Oct 20 '12 at 6:54

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