Outlook 2010 Appointment scheduling - why am I left out of group?

[ptj]

Hiya

Just moved to Outlook 2010 from 2003.

I regularly schedule appointments and need to invite contact groups of people (which include me).

On Outlook 2003, all was well.

On Outlook 2010 it adds everyone EXCEPT ME to the appointment. I then have to add myself manually!

Any bright ideas on how to stop it doing this?

Thanks

Phil