Phew....thanks all for your input.  My Mindstorm NXT 2.1 is now working on iMac desktop and MacPro laptop, both running on a OS X 10.6.8.  

Here's what I did:
1.  Downloaded the update for NXT 2.1
http://www.legoeducation.us/eng/Support/NXTSoftwareUpdates.cfm?paID=5645

2.  Downloaded the "Fantom Driver"
http://us.mindstorms.lego.com/en-us/support/files/default.aspx#Driver

3.  Restarted the computer, and opened up the application/NXT 2.1.  It works!  Yeah!  Well, that's all I did though :)  Tomorrow I'll have more time programming the robot with my son.  I'll let you know if I run into any more glitches or a need to download other files (as suggested with a few other posts on several forums and listserves).

Thanks all for your help. 
Leandra



Date: Thu, 9 Aug 2012 13:19:07 -0400
From: [log in to unmask]
Subject: Re: [VADCFLL-L] Problem with Opening Mindstorm NXT program on MAC
To: [log in to unmask]

I had the same problem, when I updated to Mac OSX lion. I called LEGO and they were very helpful. I currently am running Mountain Lion and no problem. I have Lego NXT 2.1f5.
I can try to email you the zip file if you need it.

Alex

From: <Swayne>, Nick Swayne <[log in to unmask]>
Reply-To: Nick Swayne <[log in to unmask]>
Date: Thursday, August 9, 2012 12:30 PM
To: "[log in to unmask]" <[log in to unmask]>
Subject: Re: [VADCFLL-L] Problem with Opening Mindstorm NXT program

I haven’t coached a team for a couple years so have not updated my software since v2.0 came out.  I tried to run v2.0 on my MacBook Pro (3 years old running Lion) this summer and it kept crashing.  I just ordered the v2.1 software but haven’t received/installed it yet.  As soon as I get it I’ll test it out. 

 

LEGO Education has been VERY supportive in the past so I recommend giving them a call.  If you discover a global issue/solution, please post it to the list.

 

Nick

 

From: First Lego League in Virginia and DC [mailto:[log in to unmask]] On Behalf Of Alex
Sent: Thursday, August 09, 2012 12:21 PM
To: [log in to unmask]
Subject: Re: [VADCFLL-L] Problem with Opening Mindstorm NXT program

 

 
Have you gone to Lego Education and downloaded the update?
http://www.legoeducation.us/eng/Support/NXTSoftwareUpdates.cfm?paID=5645
On Thu, 9 Aug 2012 11:48:44 -0400, Leandra Velasco 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
 
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