I am on a Mac but I assume the interface is the same. Under preferences, there a misc tab. On that tab (left hand side) under "save" should be a check box  that reads something close to  "Save to external binary morph targets" or words to that effect.  Can't get to my copy of P7 at the minute. But that is the setting the above person was asking about.

Gary

"Those who lose themselves in a passion lose less than those who lose their passion"