Apple has released a firmware update that addresses a handful of issues on early 2009 Mac Pros. The update improves "compatibility with virtualization products utilizing VT-d, storage performance under Windows XP for Boot Camp users, and system reliability during the boot process." To install the update, follow the instructions in the updater application that launches automatically after the installer has closed (/Application/Utilities/MacPro EFI Firmware Update.app). More information regarding installing a firmware update on an Intel-based Mac is available on Apple's Web site. The update is available via Software Update and the Apple Support Downloads page. (Free, 1.96 MB)
Compare More Easily in Apple Mail
In Apple Mail, if you need to work back and forth between two different views of Mail's mailbox contents, you can do so quite easily. For example, you might want to look at a mailbox holding all filtered-in sales orders from the past week while also looking at a smart mailbox showing unanswered customer questions.
To avoid constantly clicking between mailbox views and losing your context each time, choose File > New Viewer window to get a second window and then arrange each window as desired.