Setting the value fetched from the database in a Dropdownlist

[Raja]

I have an .aspx form with Microsoft Tab on it.There are about 4 Tabs
with each one having a Dropdown List.When the page is loaded it
fetches value from the database and Sets the value as selected using
FindByValue in the Dropdown combo.When i debug the application i saw
that it sets the correct value in all the respective dropdown but when
the page is loaded i came across a unique problem.It sets the same
value for all the Dropdown i.e. the dropdown whose value was set last
in the code is displayed as selected for all the dropdown.
Any clue to this problem.