Error while connecting new Db

Hi,

i am using the SAP B1 - 2005B and Sql Server 2005. I have the taken the back up from other server which is having the same verion and restored in the new one. after the sucessful restoration when i tried to connect the new D/B it shows the following error

Internal Error "(CHEN) (-2015) occured [Message -131-183]

What do to on this?

Regards

Suresh R