A small word of warning about Vista Service Pack 1 if you use more than one operating system on your computer and Vista Ultimate. Well, that's if you are using Linux.

According to APC, there is an update to the BitLocker encryption tool, which involves making a change to the bootloader. This is the bit that controls how Windows starts and is changed by the Linux installer.

The advice is to restore the Vista bootloader before installing any of the updates and then reinstall the non-Windows one. This is simple to do with a Vista DVD.

The refusal of Windows to recognise that there might be any other operating systems installed on a computer has frustrated me for some time. There are ways round it but it just adds needless stress.