This saved me loads of time, I realise not everyone has more than one Excahnge mail account, but every company I work with gives me an email address, and normally as I setup their servers its going to be on a Mocrosoft Excahneg box...
Thanks to the Microsoft Office team (they listed YAY), Outlook 2010 can host more than 1 exchange account now!!!
But I needed more than the default allowed 3 and here is how to do it -
note: this involves a registry edit, please backup everything before doing it as we all know how bad a registry error can be!!!