I have a problem where users are creating a new resource and select a group under the drop down list for group names. 

However when they do this, a new group gets created and added to PMP. For example:

1. I have a resource called "Applications" which contains 10 resources. 

2. Another user (Joe Bloggs) creates a new resource and under group name they select "Applications". 

3. In PMP under Password Explorer pane I can see a new item appear called Joe Bloggs's Group and under that is another group called "Applications" and in that group is the new resource they created.

However no one else can view that resource and when creating a new resource in the group name drop down list you see two "Applications".

I want users to create new resources and add them to the appropriate group without duplicates being created. 

How does this happen?

Thanks

Gareth