ADODB - Cube connection error: Provider could not set DATASOURCE, USERID, or PASSWORD property

When attempting to connect to my cube from the same server, I receive this error:
"Provider could not set DATASOURCE, USERID, or PASSWORD property"

The connection works just fine from my machine, but when going from the server to the server, I profile it, and no connection attempts are made. The server is w2k3 SE sp1, and the successful client is win xp pro sp2.

The method I'm using is an adodb ConnectionClass in C# vs.net 2003. The adodb is using v2.8, and I used the component checker to make sure the server has 2.8 - it does.
I have the user name and password in the connection string,
"Provider=MSOLAP.3;Cache Authentication=True;Persist Security Info=False;Initial Catalog=thecatalog;Data Source=theServerName;"
calling the open like: cn.Open(ConnectionString, "theuser", "thepass", 0);
and if it successfully opens, then I make use of an adomd.cellset.

I'm currently checking component differences between the 2 machines, but does anyone have any specific things to try or specific components to check?

First I would make sure you can establish OLED connection from one machine to another.

You can find here some clues on how to troubleshoot connection problems: http://www.sqljunkies.com/WebLog/edwardm/archive/2006/05/26/21447.aspx

Second, as you already suggested, I would check configuration of components.

Edward.
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