thank you for your reposne.

I did now about the pk/unique clustered index. I have a problem in creating on with the content of the tables. To get a unique index, some would be almost every row in the table.

I have further researched and agree with several comments about "Why would MS do this? How come you can't move to a filegroup WITHOUT a pk/unique contraint?"

I have posted it on MSDN, but I have not had any responses.

thanks,

Joseph