I have a user who is experiencing a series of errors intermittently when attempting to open drawings using Visio 2003 SP3. Sometimes, the user will be successful in opening, editing and saving the drawings without any issues. Other times, when the user attempts to open the file, the first error he receives states "An error (1564) has occurred during the action Open File. DOS Network name was deleted." After acknowledging the error and attempting to open the file again, the next error message he receives states "<filename>.vsd is already open for editing. Would you like to open a copy?" He clicks "OK" to open the file but it will not open.
Other users are able to open these same files without any issues at all. Sometimes, the user will be able to open the files without the errors. The files are stored on a network drive, and the user has full control of the folder in which they are stored. I have verified on the server that the file was not opened by another user at the same time. He also has no issues opening other files on the same network share. I have tried reinstalling Visio 2003 + SP3, but the issue continues. Any suggestions would be appreciated.