Help! Microsoft Visual C++ Runtime Library Error

I keep getting a abnormal program termination runtime error when my server is down. My vb app uses the Domino com object to send out an email. I had it working before that if the server is down, it would continue to attempt to send the email. There is a trappable error for this. Now, I keep getting the abnormal program termination runtime error and I don't why. I have pinpointed it to be when I am setting the object:

Set DomSession = New NotesSession

Any ideas?