I have my saved DBX files (including the inbox) from Outlook Express on my old Win XP machine. Now trying to import them into Win 7 Live Mail. I click Import Messages, select OE6 as the type, and point to the folder where the DBX files are. But when I click Next, it says "no messages can be found in this folder."

How do I get Win 7 Live Mail to recognize the DBX files?