How do I have DM 4.63 Free ignore 0 legnth files and folders ?

Hi,
My scan of files and folders takes quite a bit of time. The only folder I'm backing up is the user folder and all it's sub folders. When backup finally starts, I get a lot of errors concerning files or folders that are either 0 length or don't have permission to access. Is there a setting that will permit the software to skip those items, and then remember for future scans to ignore them?

Thanks,
Ed