This is indeed a reason why backing up to mapped drives isn't supported
with Windows Vista.

According to Microsoft, to use a NAS device as a backup target, you
need to create the share with "Full Control" privileges for the user whose
credentials they want to connect with.

If this doesn't work, contact your NAS manufacturer to ask them for
upgraded firmware based on 3.x version of Samba.

--
Carey Frisch
Microsoft MVP
Windows Shell/User

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"Chris Cowles" wrote:

I'm trying to back up from Vista Ultimate to a share on a networked
Linksys NSLU2 I named NAS1. The share is 'backup'. Backup can browse
to the folder at which point I get a userid/pw prompt. After
completing login to NAS1, Vista backup consistently fails because
"Cannot create a file when that file already exists. (0x80070087)".

When I look in the share directory, there's a new subdirectory with
long hexadecimal name. It wasn't there before I started backup, so
backup created it then wants to try to created it again?

Any suggestions for resolution?

TIA
--
Chris Cowles
Gainesville, FL