The official end to Windows XP support may have sent many companies into a panic, but it was good news for PC manufacturers this winter... well, sort of. Both Gartner and IDC report a big increase in PC shipments during the first quarter thanks to companies scrambling to replace old XP computers at the last possible moment. However, the two analyst groups note that the sudden spike only managed to soften ongoing declines in PC shipments, rather than reverse them. Depending on which research firm you ask, the number of PCs on the market dropped between 1.7 percent to 4.4 percent year-over-year. That's better than what system builders have seen over most of the past two years, but it's not exactly a recovery.