There is a bug reported by Mark Ott Nilsen in the .065 version of the
program. If the database you attempt to backup has a - (dash) in the
database name (such as My-DB), the backup will fail.
A fix for this bug is available now here:
http://www.simplesql.net/KraftSimpleSQL.066Beta2.exe
This version also increases the timeout for backups from 10 minutes to
30 minutes.