For the 2nd time this tax season, Proseries would not update, which would then not allow me to efile.  After hours on the phone with Tech Support, they had me uninstall, then reinstall the product. Then had to restore the clients (2nd time)  It appears because this was the 2nd time this had to be done, all clients were duplicated and some information on some returns was lost.   How do I get the duplicate files to go away and make sure that the clients that I'm keeping are actually the ones I worked on already?  Very frustrated with ProSeries this year.