Are you receiving an error message prior to the system "hanging"?

>Hi,
>
>My app runs well on my machine... but when I installed the app on a users machine.... it hangs....
>
>Details:
>---------
>
>I have a DLL that does data access .. it connects to a SQL 2000 server.
>This DLL is referenced twice in my code... once to add a name and another time to add an order...
>
>Its strange but.. I can add a name to the SQL database fine... but when I try adding an order.. it hangs....
>
>Furthermore, I installed VB on the users machine..opened up the project and ran it through VB.... The program did NOT hang!!!!
>
>I registered the DLL ok.... my SQL connection is OK...
>
>What could be the issue?
>
>Thanks in advance..
>Alvin