i did a fresh install on several versions of vista including the latest RC1 and found it was very slow, often froze up for a second or two, and dont dare try to do anything on your pc while you import or export your pst file. i have a well equiped new laptop so i know it isnt my pc. i went back to 2003 for a bit while they work on it a little more. i do like the look and feel of everything and cant wait to get back to it when it runs a little better.