I have changed notebook, on the previous machine the backup was done on the E: drive. In this one there is no e: drive so this backup always comes up prompting for a location and when I click the window shuts itself. I searched the options and couldn't see where to change this. I am using 5.8.8 version
If Pierre's suggestion doesn't help, maybe you can plug-in an USB drive or use Uwe Sieber's USB Drive Letter Manager (www.uwe-sieber.de/usbdlm_e.html) to get an E: drive, and see if you can change the path then?