How do I change IRS location on an 1120X

The IRS Service Center is populated automatically, based on the address for the business entered in the "Information Worksheet." You can find that by using the "Forms" icon on the top left corner of your screen.  

I originally used Turbo Tax Business to e-file my 1120 however, now I need to re-file the 1120X but Turbo Tax will not allow me to re-e-file it says that I already filed this return.   But I am required to resubmit it electronically so how do I over come this problem???

DBuonomo