I have multiple email account going to my phone, ie, Exchange, Gmail, etc and all have worked without problems since day one but suddenly when I go into my Mail and attempt to do anything I get the above message. The options presented are Force Close or Tell HTC. It only started yesterday while at home and is the same outdoors. I can't even move from All Inboxes to All Deleted Items, for example as it takes me back to All Inboxes. Any ideas?