Hi Richard,Have you had a look at the column's "SortMode" property in the DevExpress grid? Perhaps try "displayed text" rather than "default". We always set the sort mode of every column to "display text" unless it is a date/time column in which case we set the sort mode to "value".
I don't know if this will help but I've never noticed any sorting issues on our forms.
Also, be careful when dragging / dropping columns in design mode because you may inadvertently set a column to sort.
Cheers, Peter