asp errors not displayed

Question

I have moved an sql database from one server to a new one (detached/attached)

Now i experience some strange behavior as it does not work but NO error is displayed.

Answer 1

have you got your browser set to "show friendly http errors" this in conjuction with what you have already identified is the common causes I've had for not seeing an error message.

Shahkaplesh is also right that you can use Server.GetLastError() to get the last error that occurred but you shouldn't need to do this in this example.