The spinning beach ball is not a crash but a process that has taken too much time to complete. It can be caused by lack of memory, too many processes running or a loop within a process. Since this has occurred on more then one system, I would suspect the latter, but that can be very difficult to trouble shoot without the source code. You can use the Utilities -> Activity Monitor and select the "hung process" and the so a "Sample" that will show the looping functions. Sometimes just the function names will give a hint - other times that exercise is useless.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
