Some buyers of Apple's new Aluminium MacBook range are complaining of loose battery/HDD latches and slanted function keys on their keyboard.
"The cover was fine at first, but after I took it off for the first time and then put it back on, it didn't go on as tight and started moving around, creating gaps in the front and back," reports one Apple customer on the MacRumor forum.
The problem could put pressure on the aluminum frame, the battery and the hard drive.
Apple has said nothing of the problem, which is the usual case when snags first crop up on its products.
It will be hoping that the latest defects do not escalate into something like the millions of defective laptop batteries that plagued it and other manufacturers a couple of years ago.
On the same forum, another Apple customer complained, after spending £2,000 on one of the new MacBooks, "It's like buying a BMW and the door doesn't close properly."