Stony Stevenson writes "A day after it was released for public download, Windows Vista SP1 is drawing barbs from some computer users who say the software wrecked their systems. 'I downloaded it via Windows Update, and got a bluescreen on the third part of the update,' wrote 'Iggy33' in a comment posted Wednesday on Microsoft's Vista team blog. Iggy33 was just one of dozens of posters complaining about Vista Service Pack 1's effect on their PCs. Other troubles reported by Vista SP1 users ranged from a simple inability to download the software from Microsoft's Windows Update site to sudden spikes in memory usage. To top it all off, the service pack will not install on computers that use peripheral device drivers that Microsoft has deemed incompatible."