An error has occurred: Could not find the document.

I get the "An error has occurred: Could not find the document." error when trying to open a URL using OpenDocument.  The URL is as follows:

http://:<myserver>8080/BOE/OpenDocument/opendoc/openDocument.jsp?iDocID=AZjCUhaL3c9Is.YxtGMc7K4&sIDType=CUID

I am certain the value of iDocID is correct, and I am also certain that I can get an OpenDocument to work on the server.  In fact, I tried the same URL using a different iDocID for a Webi report in a different folder, and it works.  For some reason, it appears as though the report in this folder won't open though.

Any thoughts on this would be greatly appreciated.  I've been working on this for a couple of days an am completely stumped.  Also, I'm relatively new to Business Objects.  Is there a log file that I can view that might give me more details regarding the error?

Thanks in advance for your help!