I finally got around to installing Office 2007 on my desktop computer today, only about 7 months after I bought it. I installed it on my Vista laptop a while ago, but I just hadn’t gotten around to doing it on the desktop XP machine. It seems to have upgraded Outlook fine, without screwing up my mail file in any way. I guess that’s the thing I was most afraid of: losing all my e-mail. And it doesn’t seem to be significantly slower than Outlook 2003, which is something else I was afraid of.