My computer (running XPPro) used to be connected to a domain. I have now disconnected it and set up a workgroup for my home network. However, messenger says that I do not have permission to use my email address, and prompts me for my email, user name, password and domain details. I have tried uninstalling (and reinstalling)messenger, using different email addresses, but to no avail. My laptop, also running XPPro and never previously connected to a domain runs messenger perfectly. Any ideas?