Which version are you using? If it's 2003, turn off the Arrange in groups
and try again.
You could try Grouping by your new field instead - Advanced Toolbars, Group
By box and drag your field into it.
Judy Gleeson - MVP Outlook
Acorn Training and Consulting
Canberra, Australia
see what Outlook training can do to improve productivity:
www.acorntraining.com.au/pdfdocs/ProductivITwithOutlook.pps
www.acorntraining.com.au/productivit.htm
> Created new field in viewusing formula Month(date) which returns a numeric
> value from 1 to 12. Wish to sort VIEW by this column, but it does not allow
> sorting on this new field added.