Troubleshooting Delphi7 / Oracle

[letters]

Hi everybody,
I have installed ZeosDBO6.6.5 stable version on Delphi7 .
I use ZConnection to reach Oracle database at client.
At designtime ZConnection is connected and I can see all data on my ZQuery on the datagrid. Everything seems to be OK.
But when I run the project it gives a meaningless exception error with strange symbols.
What may be the problem?
Please help me urgently,
Thanks

[mdaems]

The problem may be different versions of the OCI files in the system path used by the Delphi IDE and the program's executable. (Or just missing oci files from the execution path at all)

Eventually you could share your 'meaningless exception errors' with us. They may be more meaningfull as you think.

Mark