For reasons too stupid to relate here, I am trying to Export my entire Contacts file from the operating, on-line Drupal/Civi setup as a CSV to my desktop -- no problem. When I try to Import this CSV file into a development version on my desktop, I am able to browse and specify the downloaded file in the Import screen (name shows up in the proper field), but when I hit "Continue" at the bottom of the screen, I get a pink error message saying "Import data file is a required field" and the file specification in that field has disappeared. Any idea why? Could it be that the Contact Name identifier is not the first field in the upload template (or the CSV, for that matter). Any help much appreciated as I try to recover from the aforementioned stupidity.