With the latest versions of "top" supplied with Fedora Core, there doesn't appear to be a way to view process threads. This was possible before by pressing "H". They can still be viewed in ps by adding the -H option. Is there a reason for this change? I realise that with FC2 there was a move to a different fork of procps. Or is it to do with the 2.6 kernel? As a consequence, it's possible for the CPU usage to be 100%, but no processes appear to be running! Jonathan