Note: This problem is not directly (it may be indirectly) related to the caching problems experienced with IE 5.x (as described in other postings), because as soon as I tried the solutions presented to those postings, the caching problems were solved. However, the below problem wasn't: Setup: Web site using Microsoft IIS and Tomcat 3.2.1 as JSP/Servlet Container Browsers: Netscape 4.x, 6.x Internet Explorer (IE) 4.x, 5.x Problem: 1. When using any version of Netscape to access the web site, everything works fine. 2. When using IE 4.x, everything works fine. 3. If I connect directly to Tomcat (without going through MS IIS) everything works fine (no matter what browser I use). 4. When using IE 5.x, the problems begin: a. Sometimes after selecting a link or posting to a JSP page, web pages are returned to the web browser without incident. b. Other times, I get a "The page cannot be found" error. HOWEVER, when this error occurs, I press the IE's "back" button, then select the link again, and (usually) the page is found. (If not, I repeat the "back" button press and the link selection and the page is eventually found). There's nothing complicated and/or strange about these web pages, and the problem seems to appear about 30% of the time. Does anybody have any ideas? Thanks in advance for any help you can provide. David [EMAIL PROTECTED]