Dave Hewitt writes: > >So you're saying you have timed backups set and, even with a valid backup > >path and having the document open past the time limit, you're not getting > >a backup file? > > Correct. Could this have something to do with the odd path that was given > in the error message? LyX thought I wanted backups in 'backup' directory > (which didn't exist), but the error message says: > > "Cannot create backup file: C:/Program Files/LyX 1.5.2/backup/C:!Documents > and Settings!dhewitt!Desktop!newfile1.lyx~. Please check..."
This is a bug. LyX should not use a filename containing ':' on Windows. The backup fails because the filename is invalid. Please, report it at http://bugzilla.lyx.org/ -- Enrico