Deskew ALOS product

I am following the steps in the ALOS PALSAR Orthorectification Tutorial (March 2015) found on the ESA Sentinal 1 website and I cannot seem to use the Deskewing tool. I input the data as shown in the manual and then the program freezes. I don’t get an error message but I cannot close the Deskewing wizard and it is not running. I have to End Task to close the program.
Any help would be appreciated.
Thank you

Sorry, it does work. It just takes a long time and does not show as processing like the other tools do.