Component shortages could mean notebooks being in short supply over Christmas, judging from a report in Taiwan-based Digitimes. Manufacturers including market leaders Acer, Dell and HP have faced shortages of displays, analogue chips, batteries, optical drives, circuit boards and capacitors, it says.Ray Chen, president of  Taiwanese manufacturer Compal Electronics, is quoted as saying component shortages could persist through October. But battery shortages could continue into next year, says Digitimes, quoting industry sources.