Hi Brian T. & Robert, Thanks for your input. I did a uname -a on a selection of Centos 5.5 machines and found the servers, netbooks and laptops were all a variety of 2.6.18-194.32.1.el5 and 2.6.19-194.32.1.el5-centos.plus. Only the VPS were different most likely, as Robert suggested, because of the base operating system. I can update the VPS kernels and am looking forward to the surprises, all nice ones I hope, in 5.6 and then 6.0. Sometimes I just wonder about the luckiness of us non-Windoze people. We have a really marvellous choice of operating systems (BSDs, Solaris, Linux et al) and its all free and outstandingly good and reliable. I feel sorry for the Windoze victims. Its a really horrible experience using a bug-laden and Micro$oft knows best machine where it is awkward trying to make changes and avoid the ghastly mess of M$ Internet Security - ugh! Centos is so relaxing and enjoyable :-) -- With best regards, Paul. England, EU.