Inside a jsp, i use <jsp:include > to show a gif image contained in a jsp. The <img> is coded in the included jsp is similar to the following: <img src="http://localhost:8080/orgapp/view/picture.gif"/> At first the image appears when run, but when i edit this portion, say change to another gif, and re-run it the image no longer shows. Even if i just re-save the included jsp and don't change anything, re-running will still not show the image. the solution i discovered is to shutdown the browser and the current tomcat version i use (4.0.2), and then run the web app in another version (4.1.12 already installed) then the image would appear. However if i again edit the included jsp, or simply re-save, the image will again not appear. I have to re-run again in the other (4.0.2) version to make it work. This problem also happens if i start with the other version (4.1.12). Has anyone encountered this and found a better solution, or better, how to prevent this from happening. thanks in advance.