Can't sort NSTableView

FROM : Trygve Inda
DATE : Thu Jun 19 18:16:48 2008

I have an NSTableView tied to an NSArrayController

After I populate the array, the table does show the data via bindings on
each of the columns. However, clicking a column header does nothing - how
can I make it sort?

I have done this before in IB2 and it sorted ok, but I can't make this new
project sort.

The columns each have an identifier, sort key and selector (eg name, name,
compare:)

The ArrayController ObjectController class is set to NSMutableDictionary

Any ideas?

Trygve