I have installed 1040, 1120S, 1120, 1065, 1041, and the state of Oklahoma for each.  I have these installed because I am working on them.  Are saying that I should uninstall the 1040 when I work in 1120S and then reinstall 1040 each time I need to work on a personal tax return.  Since I am networked I would have to check to make sure no one in the office would need the 1040's while I try printing the tax return.  This seems extra work that a $6,500 program should not have.