Cannot open sql server microsoft SQL

SOLVED

Hi

My current version is  5.3B, when I want to generate the OE Invoice (I add some extra field base on the original invoice and add report on modules desktop) in the OE Form, there are error message "Cannot open sql server microsoft SQL"

I tried to delete all the DSNs in server and workstation, and also deleted database thru Accpac Database Setup and add again.

However, it doesn't change anything.

Please help...

thanks alot