Perhaps your Clip+ is in need of resetting. Try performing a soft reset by pressing and holding the power button for about 15 seconds, release the button, then see if the power switch behaves normally.
It’s possible that you may have a mechanical problem with the switch, if this does not help.
You can contact Support at 1-866-SanDisk (US) for further assistance, including replacement under the one-year warranty.
As you’ve just purchased the Clip+, it’s often easier to exchange the device directly with your retailer (and they can handle the replacement stock with SanDisk), as many retailers have a simple exchange policy too! Either way, you are covered.
µsansa
