Thanks David. I agree that ubb is capable of running on any machine that can run php & mysql. We were just curious as to what platform Infopop will be using inhouse to perform any development and baselining with so that when rolling out a new system we can say that with the proper tweaking and certain settings Infopop has verified that they can run x number of users on a certain piece of hardware so that we have some basic guidelines to follow. Out of curiousity....why the transition to Redhat 9 prior to Enterprise?