I am having trouble adding ProspectList to the advanced search for Leads. I had this working fine under 4.2 prior to a system crash that forced my to re-install. I had hoped that the new Studio in 4.5 would fix the problem but it has not. I can add the ProspectList field to the Advanced search but thereafter I get an error reported on the web page and clicking the select button does not open the PopupPicker. I also cannot drag the field off of the form to delete and have to restore from the new backup feature. I was using this feature to export target lists for mail merge and I desperately need it back. Any help would be greatly appreciated.