AMD XP-2800, 1GB ram, XP, DSL. Overall the computer has always ran fast. I use all the anti-programs and everything is up to date. A while back i Had a similar problem and ran ShellEXView and it fixed it. Now I find not the same but random pages that will freeze and show "not responding" in task manager, but will start to run after a minute or two. While this is going on, I can run other programs at normal speed. Something is stll causing a bottleneck. During thhang,, task manager never shows above about 20% cpu use or about 450mb of ram use. Any ideas. Also any free computer diagnostic tests that may help?