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is reportedly behind schedule in filling orders for its 27-inch iMac desktop computer.

Apple said Monday it is "working hard" to meet demand for the computer even as reports mount that the machine's screens are malfunctioning.

Apple declined to comment on the complaints, but a spokesman told the

Wall Street Journal

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the company was working to meet demand.

"We are working hard to fulfill orders as quickly as possible," Apple spokesman Colin Smith said. "We apologize for any inconvenience or delay in delivery this may cause our customers."

The machine's debut has been marred by reports that its displays have malfunctioned creating flickering images or yellow-tinged images. Customer postings on Apple's Web site, as well as on many Apple fan sites, have suggested the computers' screens have arrived broken and cracked, the



Apple began selling its new iMac models in October. Industry analysts have reported strong consumer demand for the Mac lineup this fall,



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