Friendly "Cannot Connect to the database" error someone?

Does anyone know how to modify the (as a mate perfectly described it) awful white page with "Cannot connect to database" written in black across the top? It seems that no real html file is being written/rendered. I tried to use the CustomError section in the web.config file, but that didn't do much unfortunately. I'm thinking that is error comes straight out of the ISAPI filter and that there isn't any nice and clean way of making this error more userfriendly. So if someone knows please let me know ;)

Technorati tags: Support