Copy won't start

[allenbirnbach]

I've set up SuperDuper to copy my hard drive to an external. All that went fine. I enter my password, and click on the Copy Now button. Nothing is happening. Any ideas what might be going on here? Mac Powerbook G4, OS 10.4.11. Thanks.

[dnanian]

That usually means that the security subsystem on your Mac isn't working right, Allen, but please drop me a support email and I'll see if I can help.