problem with ms-sql multiple database

[eluser]Unknown[/eluser]
Hi,
My program contains multiple mysql and mssql database. It is ok dealing with multiple mysql databases and a single ms-sql database. I am not having any problems with it. But while dealing with multiple ms-sql databases, I get the following error:

A Database Error Occurred

Error Number:

Invalid object name ...


If I comment the code for loading the any one of the databases, it works.
Please help me out..

Thanks in advance