Newbie User

Nergal, Same error, any other suggestions?

Hi, I am trying to use Recuva to recover files from a partially overwritten hard drive, using a USB thumb drive. I have added the file portable.dat as per the wiki. Using the wizard I have run the program and selected certain files to be recovered. When I click on the recover button, I am prompted to select a location for recovery, but no choices are given. I click on make new folder and the program does not respond. The only thing I can do is cancel and go back. What have I done wrong? Thanks!