I have been using squid for awhile in my windows box. i just noticed that squid seems to be redownloading the same image all the time. I previosly have disabled access.log so I turned it on. I viewed an image (from a website importing cars from japan) and Firefox begins to download it. I looked at the access.log and I get a "tcp_miss" for this image. I clicked on next to view the next image and again it's a "tcp_miss" as it should be. I do this until I get to the end of the list of images for the car. The problem is that when I clicked on previous to view the previous image, Firefox begins to redownload the image. I checked access.log and I still get a "tcp_miss". I did this several time and it seems it's all a "miss" for the same image. I thought squid is suppose to just retrieved the image from the cache? I have setup my squid to use: cache_memory_replacement is the default cache_replacement_policy heap LFUDA cache_dir ufs c:/squid/var/cache 13312 16 256 Thanks for the help :) ============ here's a snippet of my access log. Please note the double "miss" entries. (1st and last lines) 1209124884.112 22063 192.168.1.2 TCP_MISS/200 171857 GET http://www.j-spec.com.au/list/12536/3.jpg - DIRECT/67.15.56.51 image/jpeg 1209124890.565 750 192.168.1.2 TCP_MISS/200 1278 GET http://www.j-spec.com.au/popup.php? - DIRECT/67.15.56.51 text/html 1209124916.659 26078 192.168.1.2 TCP_MISS/200 205313 GET http://www.j-spec.com.au/list/12536/2.jpg - DIRECT/67.15.56.51 image/jpeg 1209124972.237 656 192.168.1.2 TCP_MISS/200 1278 GET http://www.j-spec.com.au/popup.php? - DIRECT/67.15.56.51 text/html 1209124986.768 922 127.0.0.1 TCP_MISS/200 3676 GET http://forecastfox.accuweather.com/adcbin/forecastfox/weather_data.asp? - DIRECT/12.120.29.14 text/xml 1209124990.331 3469 127.0.0.1 TCP_CLIENT_REFRESH_MISS/200 5243 GET http://sirocco.accuweather.com/adc_sat_108x81_public/ir/isaust.gif - DIRECT/12.120.29.14 image/gif 1209124995.393 23141 192.168.1.2 TCP_MISS/200 171857 GET http://www.j-spec.com.au/list/12536/3.jpg - DIRECT/67.15.56.51 image/jpeg