Paul,
You have to rebuild the dimension structure and then it will reflect the changes in the cube. Under Shared Dimensions right click on the dimension you have changed. Select Process and then select Rebuild the Dimension Structure. Hit OK and it will repopulate your dimension. I don't think you will need to reprocess the cube but always check to make sure it is working right.
Hope this helps you...
Skip Gallagher
Quest Industries, Inc.
(501) 685-4546
Skip Gallagher
Quest Industries, Inc.
(479) 366-0789