I am trying to access my data file on another computer than I usually do.  I copied the data files and the related QBW.searchindex directory onto a portable drive and then copied these onto the harddrive of the computer.  I am unable to open the file.  It just keeps spinning.  I have tried using the Quickbooks Tool Hub  (both the "quickbooks file doctor" and "quick fix my program" and "quickbooks program diagnostic tool") and have had no success.  I have also used the desktop file doctor and got nowhere.  I then copied the portable backup file off the portable drive onto the local hard drive and tried to restore it.  I am told that it is not a valid portable backup file.  I tried an older portable backup and got the same message.  I have wasted a full day trying to get this working.  Please help!