It seems that I have problem with Outlook 2003 and large amount of internal
memory.
Please read the messages below.
I.ve posted  these messages earlier in the newsgroups
microsoft.public.pocketpc.activesyns and there they adviced me to post it in
this group.

Message 1

I recently updated my from Outlook 2002 to 2003. Now I only can sync when
Outlook is not active.

Activesync activates Outlook an it still keeps running as proces. When I
start Outlook some buttons are greyed out. I have to kill Outlook proces
with the taskmanager and restart outlook to activate the buttons.

I've uninstalled and reinstalled both Outlook and Activesync but the problem
is stil there.

- Message 2

First I thought this problem has a relationship with activesync. But when
I take out my PDA from the craddle (activesync is inactive) I discovered
that after a period of time the buttons are greyed out. I find this
article in the KB of Microsoft

http://support.microsoft.com/?scid=kb;en-us;827310&spid=2520&sid=208

where they discribe that Outlook 2003 has a memory problem.

When there is no PDA in the craddle the memory-usage is slowly increasing
and after a period of time Outlook locks.
When I connect the PDA the memory usage increasing directly to the maximum
and outlook is locked.