"The query could not be processed" message with MSOLAP.2

[roger.camargo]

Well I get this message:

The query could not be processed:
o The data provider didn't supply any further information,

With the following properties.

ConnectionString
Provider=MSOLAP.2;Data Source=\\192.168.0.1\data.cub;Initial
Catalog=ERPadre;Client Cache Size=25;Auto Synch Period=10000

DataMember
ERPadre


But if I change to the following properties, the message disapears and
it works...

ConnectionString
Provider=MSOLAP;Data Source=\\192.168.0.1\data.cub;Initial
Catalog=ERPadre;Client Cache Size=25;Auto Synch Period=10000

DataMember
ERPadre


The diference is just Provider=MSOLAP.2; -> Provider=MSOLAP;

In the second option even if I'd set Provider=MSOLAP;

When I look into the Command and Options. It says that the Data
Provider Name = MSOLAP.2

What is happening...?
What are the diferences if I use: Provider=MSOLAP.2; or
Provider=MSOLAP;
Should I keep with the: Provider=MSOLAP; option or there are gonna
be problems?