I have a couple users, in a new install of a samba file server on CentOS 4.2, who are being prompted to overwrite the existing file when in MS-Excel and simply saving the active spreadsheet. Normally, File--Save (or just clicking on the disk icon) for an already saved file will re-save the file without prompting to overwrite. I have my doubts about whether this could be a server-side issue, and suspect it's probably Excel, except 1) it started when I switched them from a Windows file server to the Samba server; 2) it happened to both of them at the same time; 3) I've been working with Excel for a long time and never seen a setting for this. Anybody have any idea what this could be, or how to diagnose it? Googling gets me a few VBScript questions, nothing useful. FYI, the samba share is pretty basic, but I did increase the create mask and directory mask settings, since these files are shared between several users and they need to write each other's files. Apart from that, no deviations from the norm. Thanks, Matt