After updating I created a named location and merged it with the old blank location.  Then I tried to purge old PI  records (we haven't done this since 2007!) and while is says it is purging, the PI is still listed and in maintain database the frozen PI list is till in there, with a blank location.  How do I get rid of these records?  I have a feeling they will get in my way if I try to make parts obsolete.