Symptom
The Macintosh Manager Server/Multiple User Login Databases can potentially be damaged when the Epson Launcher extension is installed and active on client computers.
Common error messages- End Of File (EOF) error message appears when Macintosh Manager admin is opened
- Macintosh Manager Server cannot be accessed at this time (unknown problem)
To determine whether databases have become unusable, check the file size of "...DB.idx" files. The minimum file size (in bytes) is 4608 bytes. If the file is smaller than 4608 bytes, then it is most likely unusable.
Solution
1. Check client computers using Macintosh Manager or Multiple Users login to determine if the Epson Launcher extension is installed.
2. If installed, disable this extension on all Macintosh Manager clients.
The result of this appears to be some loss of background printing functionality, but the database issue does not seem to resurface.
In order to recover an unusable database follow the instructions in article 88023: "
Macintosh Manager: Recovering an Unusable Database"
Apple is working with Epson to determine the best course of action toward final resolution on this matter.