Sweep creating two bodies

This surface sweep is creating two bodies. When the bodiesare mutually trimmed, the 2nd body needs to be deleted. I havenever noticed a surface sweep creating two bodies.

As the delete body is an extra step, how can I get the surfacesweep to create one body instead of two? Is this due to a settingthat needs to be changed?

SW Office 2007 x64 SP 5.0SolidworksSurfacing