Chad,

From your description, it sounds like the browser may be attempting to refresh page elements from the server when they are changed using DHTML on the client in response to a user action. IE is notorious for this. If you don't experience the same behavior on the same page in another browser, such as FireFox, this may be the issue. If so, you can try to get the browser to cache the HTML by including an 'Expires' meta tag in the page header, for example:

<META HTTP-EQUIV="EXPIRES" CONTENT="Mon, 22 August 2006 11:12:01 GMT">

This may or may not work, in which case Rick Strahl's solution seems the most practical.

Best wishes,
Sam Thornton