Russ,

Unfortunately I have exactly the same problems as Dave, using exactly the
same software versions. In my case, mindful of problems I've previously
experienced with old format and/or corrupted pst files, when I upgraded from
Outlook 2003 I created a shiny new empty pst file. Then I opened the old 2003
pst file and copied everything from it to my new file. Finally I closed the
old file. Now, under conditions I haven't quite got my finger on yet, Outlook
loops on send/receive, the message is not sent and I have to terminate
Outlook.

And yes, I too have a Windows Mobile device, 2003R2 in my case. But I
deleted everything from it before setting up a new partnership and filling it
with the contents of my new pst file.

So there seems to be more to this than problems caused by importing or
synchronising.

RS