Error with Scheduling a Report to run in SSRS 2000

Getting the below error when trying to schedule the report to run.

I can run the report just fine as a stand-alone and not thru the scheduler.

I have several others that run just fine in the same way.

ReportingServicesService!processing!5d4!8/24/2010-01:15:02:: e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Query execution failed for data set 'DataSource1'., ;
 Info: Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Query execution failed for data set 'DataSource1'. ---> System.Data.Odbc.OdbcException: ERROR [01004] [AcuCorp, Inc.][AcuODBC Driver][ISAM]Unable to open xfd file
  at System.Data.Odbc.OdbcConnection.HandleError(HandleRef hrHandle, SQL_HANDLE hType, RETCODE retcode)
  at System.Data.Odbc.OdbcCommand.ExecuteReaderObject(CommandBehavior behavior, String method)
  at System.Data.Odbc.OdbcCommand.ExecuteReader(CommandBehavior behavior)
  at System.Data.Odbc.OdbcCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
  at Microsoft.ReportingServices.DataExtensions.CommandWrapper.ExecuteReader(CommandBehavior behavior)
  at Microsoft.ReportingServices.ReportProcessing.a1.v()
  --- End of inner exception stack trace ---