Alice 2.2 only launches under one profile on a Mac

I installed Alice 2.2 yesterday on my Mac (OSX 10.5.8, 1.67 GHz PPC G4, with 2 GB RAM) while in my admin profile (which I only use for installing/updating programs). Program launched with no difficulties, and I was able to use one of the tutorials. However, after logging in under my back up admin profile, Alice starts to load, then closes (before reaching the splash screen). The same problem occurs when under my normal user profile.

I redownloaded the application & reinstalled. No change in behavior. Console shows the following:

7/10/10 Jul 10, 2010 12:09:55 [0x0-0x1c01c].edu.cmu.cs.stage3[164] [JavaAppLauncher Error] chdir() failed, could not change the current working directory to /Applications/Alice 2.2.app/Contents/Required
7/10/10 Jul 10, 2010 12:09:55 [0x0-0x1c01c].edu.cmu.cs.stage3[164] ERROR: Permission denied
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] [LaunchRunner Error] The main class "edu.cmu.cs.stage3.alice.authoringtool.JAlice" could not be found.
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] [JavaAppLauncher Error] CallStaticVoidMethod() threw an exception
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] Exception in thread "main" java.lang.NullPointerException
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] at apple.launcher.LaunchRunner.run(LaunchRunner.java: 112)
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] at apple.launcher.LaunchRunner.callMain(LaunchRunner. java:50)
7/10/10 Jul 10, 2010 12:09:57 [0x0-0x1c01c].edu.cmu.cs.stage3[164] at apple.launcher.JavaApplicationLauncher.launch(Java ApplicationLauncher.java:52)
7/10/10 Jul 10, 2010 12:09:57 com.apple.launchd[111] ([0x0-0x1c01c].edu.cmu.cs.stage3[164]) Exited with exit code: 1

Going to Get Info, Permissions showed that my primary admin id, Everyone, and World were set to Read & Write. I added my secondary admin and user profiles, but, still no joy.

Checking the Java Utility shows that J2SE 5.0 32 bit is enabled.

I would appreciate any suggestions on how I can get Alice to work under my normal profile (without having to constantly open the disk image).

Many TIA,
shnew

I just ran into this exact same problem myself. I added an individual user with read/write permissions, but still no good. Has anybody been able to find a fix for this problem? I have a lab full of MACs I need to get this program working for. They all use different logins, so I need it to work for all users on all MACs. The PC Alice does not have this problem...it's just the MAC version.