ASP.Net and Custom Screen

I have an constituent custom screen that I built with ASP.Net. Simple screen where all it does is display a note field from a local table and allows the user to update that note. All of that works fine except if I do and update which works and the DB is updated but if I close the customer record and come back to it, I see the note as it was prior to the update. If I right click on the screen and select refresh, I now see the updated value.

So the DB update is working but why is it still showing the original value?

BTW, I am doing a response.redirect back to itself after the update.

Thanks,

Marty