I've heard that with Windows XP, old versions of Norton Speed Disk do not work and that the latest version of Speed Disk included in Norton Utilities has a number of features removed and is no better, if not worse, than the defrag utility that Windows XP comes with...
When you launch a new product, it's always best to have a clear message. You buy a dishwasher because you hate washing up, you buy a car because you can't walk 20 miles to work, or wait for the bus that comes once a week; and you buy a Microsoft Smart Display because, um...