Yeah, let's not make this a platform war. I use both platforms, and they are both just fine. There's no need to call anybody's computer ugly here.
To you guys who are having issues where the packs disappear -- Do you have rather large libraries? Do you use external disks? There's gotta be something different about our installations, and if we can pin it down, Ableton will likely have an easier time fixing it.
The reason I ask about 'large libraries' -- Maybe it's similar to how when you add files into your places folders, it sometimes takes a while for anything to show up -- Or if you install a new pack, sometimes nothing is there for a while.
Then a few folks have mentioned that changing prefs to point away and back fixes it -- I wonder if it's an indexing issue, perhaps related to either the size or location of all or parts of your library??? Now that we've established we are seeing this on both OSX and Win, what else can we rule out?
My library is incredibly small relative to most other's out there (I think currently I have about 15 packs installed, and only 3 or 4 sample CDs worth of content loaded into my personal locations). I've not experienced the agony others have talked about regarding the indexing process --- to those who had their packs disappear -- did you?
I have a pretty small library actually (20 GB) and it's only a couple official Ableton Live Packs. Maybe it happened because I used a software program to uninstall the old version of Live (CCleaner) and haven't just deleted the icons in Applications.