Jacob send me a PDF yesterday about a VS 2008 'Performance Fix' - It seems that when working in Design View in either Visual Studio or Visual Web Developer, the properties menu have a tendency to “freeze up” for a few seconds when browsing through different controls. It's actually not something that I have encountered myself (probably due to the fact that I don't use Design View very often), but anyhow - If Jacob have encountered this, the chances are that many others have too.
This PDF shows how to configure VS 2008 to avoid this issue (maybe Jacob will post a comment about where he actually found this PDF ?!).
UPDATE: Jacob actually wrote the PDF himself, sorry for the misunderstanding .. and nice work, dude :)