Sort dateTime Broken in Rev 2.9?

[Peter Reid]

Has anyone found a problem with sorting using dateTime as the sort  
type with Rev 2.9?

I have a stack which has been running OK with previous Rev releases  
that displays a table with a number of columns containing different  
types of data  Some columns contain text (surnames), some contain  
numbers (staff IDs) and some contain dates (interview date). The user  
clicks on the column heading to sort the table as required, with each  
click reversing the direction of the sort ascending/descending.

With Rev 2.9, the sorting works for the text and numeric columns but  
not the date columns, which contain dates in UK format (DD/MM/YYYY).   
If I step through in debug mode the sort command executes, but there  
is no change to the field itself.  The two sort commands I use for  
the date columns are as follows depending on the required sort order:

   sort lines of field "Results" descending dateTime by item colNo of  
each
   sort lines of field "Results" ascending dateTime by item colNo of  
each

For the text columns, the sort commands are:

   sort lines of field "Results" descending international by item  
colNo of each
   sort lines of field "Results" ascending international by item  
colNo of each

For the numeric columns, the commands are:

   sort lines of field "Results" descending numeric by item colNo of  
each
   sort lines of field "Results" ascending numeric by item colNo of each

Only the sorts with 'dateTime' do nothing, the others work fine!  I  
get the same effect if I type the sort command into the message box  
and execute it directly - sort numeric and text work fine, sort  
dateTime does nothing.

Has anyone else had this problem, is it a known bug in Rev 2.9 (I'm  
using Rev under Mac OS X 10.4.11) or is there something extra I have  
to do now to make this work?

Cheers

Peter