1234703 - unable to open Voyager workspace using SSO trough ISS and Voyager SSO

I am seeing the following in the MDAS log: The MDAS logs from my login this morning: 2008-07-22 07:59:32,635

[ORBacus:Server:ReceiverThread] ERROR com.businessobjects.multidimensional.services.server.transport.corba.SessionServant -

Failed to open cube [CubeName="" CubeDescripti ProviderName="MSOLAP.3" ProviderDescription="" ServerName="NASRVRI95267"

AUTHTYPE="SSO" CUBE="PTCompSvcCorp" CATALOG="PTCog2BO"

SERVERTYPE="SERVER" MDASNAME="NASRVRI95266.mdasserver" SERIALIZEDSESSION="3&35=Venu.Ramtakah,8P&S5,88&63=secWinAD,8P&4F=580,8P&4E=

107105JWnmh83CHUZeduvw,8P&Tm=3650,83&1,8P&2r=NASRVRI95265 {3&O=Inbox,8P&2=583,83},?z&.3={3&O=FavoritesFolder,8P&2=581,83},? z&U=3,

83},? z&3k=@NASRVRI95265.NA.WKGLOBAL.COM,8P&PP=1024,83&5U=107106JZkNsDeTUhAfKNwP107105JWnmh83CHUZeduvw,8P"

PROTOCOL="occa" PROVIDER="MSOLAP.3"UserName="" Password="********"] due to connection error: Failed to load driver [MSOLAP.3]

for cube [PTCompSvcCorp]: Unable to find a Driver matching the name

'MSOLAP.3' com.businessobjects.multidimensional.services.ConnectionException: Failed to load driver [MSOLAP.3] for cube

[PTCompSvcCorp]: Unable to find a Driver matching the name 'MSOLAP.3' I know a restart of the MDAS service will resolve

this, but i would like to find the root casue. Our QA environment is currently DOWN.

Voyager SSO and supported Web Application Server. , KBA , BI-RA-MD , OLAP Intelligence, multidimensional databases , Problem