Translation problem



I’m currently experiencing a strange new problem in Softimage.

In a group scene if i select and move an object the adjacent object or all of the object move also.

This happens with any of the translation tools.

This has never happened before.

I’ve checked the translation tool options in the Preferences but I find nothing there that relates to this problem.

This is quite an urgent issue since work can’t continue in this circumstance.

Please help.