The battle between PCs and Macs continues to be lopsided with Apple on the losing end. According to data from research firm Gartner, PC shipments totaled 57 million units worlwide in the first quarter of 2006, a 13.1% increase. Meanwhile, Apple's slice of the global pie slipped from 2.2 percent to a mere 2.0 percent.

Apple's share of the personal computer market in the United States isn't moving up either. It remains relatively flat at 3.6% but down from 3.8% in the first quarter of 2005. On the other hand, overall PC shipments in the U.S. shot up 7.4% to 16.4 million units during the first quarter of 2006.

There is one bright spot for Apple. Potential Mac buyers are thought to be holding out for the new Intel-based models that had yet to come to market. The company could begin to realize some share gains later this year once all of its PC offerings are readily available with Intel processors.