It also insists that you install on your boot partition. Unfortunately, Adobe's solution to this was to simply make it so the installer refuses to install on case-sensitive partitions.
Back when I first encountered this problem, I simply assumed that case sensitivity was a new thing and Adobe would fix this in a version or two, since it's a relatively trivial thing to do. Anyone who has ever tried to install parts of Adobe Creative Suite on a case-sensitive partition will know that Adobe doesn't support case-sensitive disks.
