I have an 8700c with 4.2.1.96 I followed the steps here to upgrade to 4.5, removed the vendor.xml file, then launched the desktop mgr and connected my phone. It didn't find the program, I even reinstalled it and tried it again, still no luck, just for grins I went to ATT site and loaded and older OS program from "them" 4.1 and the desktop mgr found it. Please can anyone help, is there a way for me to use the vendor.xml file from the older "real" program in place of the one from the other vendor?And I do have the 4.6 desktop software.