After restart cluster Ejabber not work

Hi,

I install two clean Windows XP in VirtualBox.
On each I install ejabberd-2.1.5-windows.
I connect each node (test1, test2) into cluster and it's work fine (create 2 user (usr1, usr2) usr1 log to test1, usr2 log to test2, and they can communicate with each other).

Problem is when I stop ejabberd in nod2, then stop ejabberd in nod1, shut down nod2, shut down nod1 and start nod1.
Ejabberd say "Error occured... ".
But when I look in log (delete all log, one log is createt(erlang.log) but there is no error only this info (I use {loglevel, 5}) .
...
=PROGRESS REPORT==== 23-Aug-2010::12:57:25 ===
supervisor: {local,mnesia_sup}
started: [{pid,<0.61.0>},
{name,mnesia_kernel_sup},
{mfa,{mnesia_kernel_sup,start,[]}},
{restart_type,permanent},
{shutdown,infinity},
{child_type,supervisor}]

=PROGRESS REPORT==== 23-Aug-2010::12:57:25 ===
application: mnesia
started_at: ejabberd@test1

I try to install twice with same result (when I shutdown the cluster, they don't start).

Is there any idea where can I looking problem.

Thanks

Dalibor