Guys, I have done proper tests. I only reinstalled the old version when I noticed the decline in performance. I have one database on an otherwise quiet server. I have a \forum folder with the new version and now a \forumold folder with the old version so its easy to run side-by-side tests.
I installed the new version using the wizard as documented and did not edit the connection file manually.
Believe me, there is a consistent difference in performance between the two sets of ASP pages.
I am not suggesting its the pages themselves but perhaps the way the database is opened or the use of memory variables (not using them in the new version for some reason causing reads on the default.asp page).
Bruce, I have sent you two comparison URLs by PM (which I don't wish to provide publicly).
Edited by Nick-V - 13 August 2009 at 2:12pm