FM database becomes "unmodifiable" on server
Filemaker 11 Pro database file [fp7], shared on Max OS X server, it's own directory.
No more than three people using it at the same time, all with licensed copies of FM 11 Pro.
On an annoyingly regular basis, but intermittently, when a user attempts to open the file, it has "become read-only".
Records cannot be edited - the message states this record is unmodifiable, the Print and File Options commands are greyed out, etc.
There is a Time Machine backup that runs, perhaps it's locking the file?
If anyone has ideas on this please let me know.
Glad to send more detailed info if necessary.