Errors when I am using DBTreeview!

I am doing Database programming in Delphi 6, When I run my program it run
very well if i place Database on Local Computer but if Dabase place on
Remote computer My program was appeared some errors. Such as:

"SQLDA missing or incorrect version, or incorrect number/type of variables"

I have used DBTreeview component to select Data from database. I am using
OnChange method to dispose on DBtreeview.

Can you help me!