A strong performance in China wasn\u2019t enough for Lenovo Group, which swung to a loss during the fourth quarter of its fiscal year.Lenovo\u2019s fourth-quarter PC shipments either declined or were flat in every market except China. The biggest hit came in Asia-Pacific, excluding China, where shipments fell 5 percent over the same period last year. European shipments fell 3 percent while shipments in the Americas were flat, the company said.Shipments were stronger in China, rising 31 percent over the same period last year.Lenovo earned revenue of 24.4 billion Hong Kong dollars\u00a0(US$3.1 billion as of March 31, the last day of the period being reported) during the fourth quarter. That represents a 417 percent increase over the same period last year. However, that period last year did not include revenue from IBM\u2019s former PC division, which Lenovo formally acquired in May 2005.That acquisition has proven difficult to digest. In March, Lenovo announced a HK$543 million restructuring plan designed to improve its operational efficiency. The company took a one-time charge for that expense during the fourth quarter, which deepened its loss to HK$903 million.Lenovo also suffered heavy losses in the Americas, where the company reported an operating loss of HK$252 million on revenue of HK$7.4 billion.Despite the company\u2019s steep losses, Lenovo executives remained upbeat, saying the restructuring program will improve its overall competitiveness.While it\u2019s crafting its turnaround story, however, Lenovo needs to keep an eye on its rearview mirror. Taiwanese rival Acer, which has set its sights on knocking Lenovo off its third-place perch in the global PC market, performed far stronger than the Chinese company during the first three months of this year.Acer reported its net profit nearly doubled to US$160.8 million during the period, while its revenue increased 26 percent from last year, to US$2.55 billion.-Sumner Lemon and Dan Nystedt, IDG News ServiceCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.