Hotmail email account corrupt

[nontechmike]

I have a hotmail account set up in the P1i email client that has worked fine for many months. However, more recently it does not perform automated checks for new mail. When I try to edit the settings (or even delete the account) I get a data corrupt error message.

Does anyone the file I need to delete from the phone for this email account so that I can set it up fresh.

PS I have another POP3 account (...@o2.co.uk) set up in the email client that still works fine.

Thanks.