I had good results replacing 3.3.8 with 3.4.0.1 - no changes to the config were needed. One interesting observation: The dnsreq statistics are different. With 3.3.8 the graphs for requests and replies were "identical". Plotted on top of each other -- only one graph could be seen. Since switching to I'm seeing MORE requests than replies. Not much, but enough for the graphs to be seen individually. Currently I'm seeing 10.17 requests and 8.21 replies per second. Is this to be expected? Graph: http://www.arschkrebs.de/bugs/dnsreq1d.png on the left side you can see the point in time I changed the squid versions. -- Ralf Hildebrandt Charite Universitätsmedizin Berlin ralf.hildebrandt@xxxxxxxxxx Campus Benjamin Franklin http://www.charite.de Hindenburgdamm 30, 12203 Berlin Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155