can't remove data source

[ry1633]

Hello,

I imported some new Query Subject objects from my data source - and they came into my model with an appended '1' on the source name.  But for them to work in my Acceptance environment I need all of my objects to have the same data source name.  So I changed the new ones from:

Select   * from  [DATASOURCE1].viewname

to this:   Select   * from  [DATASOURCE].viewname

But when I go to delete the DATASOURCE1 from my project - it says that source is still in use by the Query Subject and can't be removed.  What is wrong and where should I look?