My program works like this... The user will click on the purchase order number to go into its details page. Then details page will let the user decide if he wants to edit it or not. If yes, he will be redirected to the edit page where he could update data.<BR><BR>My problem begins whenever I click on the Save button at the edit page. I often check our database to see if it does update the files. And yes, it did but it comes to redirecting the page... it will display this:<BR><BR>Http Error 400<BR>400 Bad Request<BR><BR>Due to malformed syntax, the request could not be understood by the server. The client should not repeat the request without modifications.<BR><BR>What do you think is the problem?