Anyone using the SetPoint software provided for Logitech mice and keyboards can now update their software to version 4.0. It supports the 32-bit and 64-bit versions of both Windows XP and Windows Vista, with the download being approximately 60MB for each - Windows 2000 and earlier are not supported by the new software. Unfortunately (for most), it now comes bundled with the Yahoo! Toolbar, so make sure to unselect that option if you don’t use such tools. There don’t seem to be any major changes, presumably just bug fixes and a couple of new features. You can download the new software
here.
Source: Logitech