Error message when adding Directory Service Group

Hello,

As I'm working through setting up a device, I keep running into this error message when trying to add a DS Group.

Unable to Retrieve Group

Unable to return: exception: class

java.lang.ArrayIndexOutOfBoundsException: -1

The first line is the title of the window.

I have been able to add other DS Groups and DS Users but each time I try to add basically a Domain Users group, I get the above error.  Any help would be great.

Mike