After about 20 minutes, the "preview" showed itself. Several hundred "conflicts" were named that needed to be resolved; why, I'm not sure since the 9930 was synced daily, sometimes twice daily, with DM 6.X The window showing the conflicts, and asking how to resolve them, was opaque in meaning, so I just clicked proceed, knowing that I had a backup, and that my laptop still runs DM 6.X with everything backed up there. Hundreds of overdue notices then appeared on the desktop Outlook. Once all this was cleared up, DM 7.X now runs fine.
But, when first running DM 7.X (not since then) I also had to reset each sync configurarion -- calendar, contacts, memos, and so on -- with Outlook, and had to deal with a dialogue box never seen before that gave the option of "Outlook" or "Outlook backup" for connecting, whatever that meant.
