[FX.php List] Sorting incorrectly

[Edward L. Ford]

Hi,
I have the output of my database set to sort on the of the fields.  
Right now, it sorts on this field incorrectly: the first letters of the 
sorted field go:
C
E
F
C **
V
V

Obviously, this seems silly.  I don't not have any special sort 
parameters defined other than the field name.  To add to my confusion, 
if I change the sort field, all the records sort as they should.

For the incorrect sort, my code is simply $MusList->AddSortParam('Inst');

Suggestions?
--Ed Ford