I access an online tracing service. A number of tabs for varying selections work except one. If we access using ie5.5 or ie6 it is ok. If we browse using ie6 sp1 we can make 2 searches then it hangs. By creating a registry key in internet settings with MaxConnectionsPerServer of 10 I get 10 connections before it hangs( see MStechnet 279745 and 183110 ). It does not seem to release my connections why??