Help Please.

I have a temporary table with only one record. This is presented to users on
a form via a tib_query connected to various tib_controls.
I want to know when and if the user modifies the record.
I thought I could use the 'Modified' property of a dataset to test this. But
when I check it is always true.

(after opening the query the dataset is modified by the program by setting
one of the field values. So how can I clear this Modified flag)

Or is there another way or an event which will tell me when a dataset is
altered ?

Regards Dave.