Hi All, I sent this reply to Leandra, but accidentally didn't hit "Reply All". I'm copying it here in case anyone else finds it useful. -- Hi Leandra, I ran into a similar problem with OS X 10.5 last year. The fix was obscure enough that I wrote myself a note to remind what the solution was. I copy it below and hope it helps. Regards, -Dave ============= June 22, 2011 David Lawrence There was a problem running the mindstorms software on OS X 10.5 that claimed a file was broken while starting up. I found the solution on a German website (translated by Google). The 3 steps they gave that seemed to fix the problem were: 1.) Download and install the MAC Leopard fix patch from lego (click "Patches" on the left): http://mindstorms.lego.com/en-us/support/files/Advanced.aspx 2.) Download and install the Fantom Driver from the lego site (Click "Drivers" on the left) 3.) Make a symbolic link called fantom.framework that points to Fantom.framework in /Library/Frameworks: sudo ln -s Fantom.framework fantom.framework It seems this may be an issue with the case-sensitivity of the underlying file system. Mac OS X usesa case IN-sensitive file system by default. This was hidden from users by a layer that maintained the case of filenames separately. I chose to enable case sensitivity (which is not the default) in the underlying filesystem when last installing OS X so that Fantom.framework and fantom.framework no longer point to the same point on the disk. Step 3 side steps the issue. I can't help but notice that there is also a VISA.framework directory there which looks like a LabView thing. It may well be that one does not need the Fantom driver at all and simply needs a similar link or renaming of VISA.framework to something like visa.framework. ================ On Thu, Aug 9, 2012 at 11:48 AM, Leandra Velasco <[log in to unmask]>wrote: > Hello All! I need advice... > > I have a Mac desk top and Mac Pro laptop, both operating on Mac OS X 10.6.8 > > After loading the NXT Software v2.1 on both computers, the program is NOT > opening up. It reads: Error code 1003/A required file is broken > > Has anyone had a similar issue? Is it because the software is not > compatible > with Mac OS X 10.6.8? > > Any suggestions in fixing this issue? > Thanks a bunch! > Leandra > > -- To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or > leave the list". > > -- VADCFLL administrative announcements are sent via > VADCFLL-ANNOUNCEMENTS-L. Visit > https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to > subscribe. > -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.