Why doesn't CalculationCenter run properly after the first time on Mac OS X?
 When running CalculationCenter on Mac OS X, you may not be able to successfully launch CalculationCenter after the first time. Because CalculationCenter was released before Mac OS X, an incompatibility occurs with CalculationCenter’s preferences. Our developers are aware of this issue and plan to correct it in a future version of CalculationCenter. However, at this time, the following file should help to alleviate the problem. PopupMenuSetup.tr Please download the file and place it in the following directory: This file will allow you to run CalculationCenter as expected.  Download this FAQ as a Mathematica 5.2 Notebook
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