DBNOTGDS, xxxx - Unrecognized database file format
Run Time Error: This indicates that a database operation attempted to activate file xxxx, which is not a GDS file.
Action: Use GDE to ensure that the files in the Global Directory are properly named. It is likely that something other than GT.M or its utilities wrote to a database file or created a file with a name that coincides with one specified in the current Global Directory.