Crdb_dao.dll error on 64 bit Windows 2008 Server

We are using VS2008 to develop enterprise solutions for our customers. We have recently had support calls from our customers installing our solution on 64 bit WIndows Server 2008 machines reporting errors when displaying embedded Crystal Reports.
The error is "Failed to load database information. Details: The database DLL 'crdb_dao.dll' could not be loaded. Error in file C:\Users........rpt: Failed to load database information"
This error only occurs in the 64 bit environment and only occurs when the report is being passed a datasource at runtime, having been developed using a different source. eg: The report is developed based on an Excel Spreadsheet and then passed a runtime DataTable to populate the report at runtime.
We have setup a test environment and replicated this error. The test machine is using the 64 bit Crystal runtime.
Any help would be appreciated as this issue is getting hot now with more customers using 64 bit environments and over 100 of our reports being affected by this error.
Thanks,
Scott.

Hi Ludek,
Thanks very much for your info and help.
Unfortunately I still haven't been able to resolve this issue.
I have installed the SP.
I have also run the modules utility, which unfortunately does not work on the 64 bit machine.
I did notice in running it on a 32 bit machine that my test report is loading crdb_dao.dll, which is the same dll that the 64 bit machine is trying to load when the error occurs.
I am wondering if it is possible that the 64 bit Crystal runtime does not include this dll because a search of the files on the 64 bit machine fails to find a file by that name.
In actual fact, on further investigation I have now found that the Crystal 64 bit runtime throws this error for any report based on a spreadsheet file, even if that spreadsheet is accessible from the 64 bit machine, so it appears to be a bug in the Crystal 64 bit runtime.
Regards,
Scott.

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