I tried logging in to the zinbra with the ajax client and I get a dialog box with this error. The error details (in the dialog box) has the following (if this is the error detail) and clicking on the report button does nothing. Imap login from thunderbird works fine. Any idea what's going on?

msg - no such conversation: -1
code - mail.NO_SUCH_CONV
method - ZmCsfeCommand.invoke
detail - soap:Sender
constructor - function ZmCsfeException(msg, code, method, detail) {
if (arguments.length == 0) {
return;
}
AjxException.call(this, msg, code, method, detail);
}
toString - function () {
return "ZmCsfeException";
}
dump - function () {
return "AjxException: msg=" + this.msg + " code=" + this.code + " method=" + this.method + " detail=" + this.detail;
}