very strange. I always found it pretty awesome that I just plug things in and they work... of course this can depend on the vendor at times. Maybe I've just been lucky. Patch level? I don't even know what that is. Windows user since 1999.
I did have to install a driver for my firepod. it took a minute. I guess that minute could have been spent writing my latest rock opus... oh well.
Oh and yes, I have seen older devices become incompatible moving from say, windows 98 to XP, or XP to win 7 - but I have also seen software and devices go absolutely crazy with mac updates too. Is there really much of a difference? Interesting seeing all of the mountain lion update hate threads. I am sure they will work stuff out - just sayin'. I have worked in studios with macs and my own with windows, and have not seen a real difference except for whatever the person is used to doing previously