Unkown Query Engine Error
When I try to run a report on one client (of course it is the CEOs computer....) I am getting an 'Unkown Query Engine Error' and then points to a TEMP directory with the .rpt extension. This is immediately after entering the third parameter value. First and second Values are text values, third value is a decimal. CC 1.0.0.4 against a SQL Server 2005 database. Crystal Reports XI developer. SQL Native client as the connection method. User has full control to temp directory and all files and subfolders. I Can run the report fine from 3 other clients. This users PC also would not accept the authentication against a different report drawn off a different database. Not sure what is going on, is there an error log or anything I can analyze? Thannks in advance.

Update:
Well I've reinstalled the SQL Native Client Verified connectivity via the ODBC administrator applet. Ran the cliconfg.exe and enabled TCP/IP and Named pipes. Nothing in the event viewer of the client Nothing in the event viewer of the server Still no dice. It is only when I run any reports through the Crystal Reports Viewer. Crystal Report Windows Forms Viewer Error in file: blah.rpt Unknown Database Connection Error. Anyone who could help, I would MUCH appreciate it. Does anyone know where the error logs are stored for the viewer.