I know... unfortunately this is a client requirement that I am unable to influence

Thank you, yes I am aware there are different instanceconfig parameters but we are using the same parameters in instanceconfig in two different environments - one is working fine and one is getting the errors

Thank you - I am trying to get access to the log

Thanks very much for your reply Chris. Will keep this workaround in mind. Does anyone else have any other ideas? (We have a lot of prompts and a lot of reports!)