Logon Failed error : ADO Error Code: 0x80040e21

I get this error when I modify anything on a report and upload it.

I'm using Crystal Enterprise 10 and Crystal Reports 10 (designer) to modify the reports on my local machine.

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I've set the datasources to OLE DB (ADO). It works fine when viewed on the designer but doesn't work right when uploaded.

To add, the code that we have been using works fine and has been used by other people in the team. Its just my machine that has had many installations and uninstalls of Crystal report. Could this be the reason for this issue?

Any ideas where I could check for dlls that shouldn't be there.. This is my first assignment on Crystal reports so please let me know of any checks that need to be done or versions that need to be verified.

Would sincerely appreciate any help.

Thanks.