Interesting Gene. Now that I think about it, it has happened every since the 6.1 upgrade. We're apparently having the exact same issue. I'm obviously living with it and have been manually backing it up to the server weekly. It has no problem automatically backing up to a USB drive automatically so I have a daily back-up on the main computer and USB drive at least.
Sandeep, I actually did this and it failed as well. I mapped a network drive to z: and it still wouldn't back it up on the automatic back-up but had no problem when I clicked on manual backup.
I thought it was permissions issue as well but with a failure writing to a mapped drive and success with a "manual" back-up, I just don't understand it. I simply have my office set-up as a workgroup of computers without a domain so that should be fairly simple as well. I'm stumped a little and will continue to try different things.
