It actually made me go straight to Access 2007. Which I'm very happy about. Now all we need is Windows 7. Thanks for your link. Damn shame that the beta version has no upgrade path. So it's a little premature to mourn over the death of Vista.
All I have ever done with Vista Bob is the standard updates.
One example I have that is very slow is Stephen Lebans Report/PDF converter. I have made that so it will do all reports in the DB in one go. I have a continuous form that opens and each record is the Report name. XP will just go straight down the records, perhaps a couple of seconds a record but Vista might be 20 seconds a record. There are a couple of others that escape my mind at the moment.