Apple has posted an update for Boot Camp, the utility which lets Mac users to boot on Windows. The update brings Boot Camp to version 2.1 and is destined to Windows XP and Vista 32bit or 64bit users.
This update addresses issues and improves compatibility with Microsoft Windows XP and Microsoft Windows Vista running on a Mac computer using Boot Camp. It is highly recommended for all Boot Camp users.
Important: Installation of Boot Camp 2.1 is required before installing Windows XP Service Pack 3 (SP3)
For more information, please visit this website: http://www.apple.com/support/bootcamp/ [1]
The update is available either through the Software Update utility (on the Windows environment) or from Apple's support web site [2].