I just ran the boot loader uninstall from the utility (using the boot loader uninstall icon just like I did last night) so I could explain to you what happened, but this time it worked.
Last night it wouldn't let me do anything in the utility since it wouldn't recognize the Sansa as being attached. I am sure I was in the correct USB mode. It was like the boot loader uninstall was half way completed. Why the uninstall worked today I don't know.
It seems to be booting up normally now, so hopefully I am back to where I started.
Thanks for the quick reply anyway.