Any time you have a unit which you feel is obviously defective please call in at 1 888 851 6464 so we can get that taken care of.
This number applies to any home class product, if you are ever in doubt as to the number you should call or the hours of support just see that products page on http://support.dlink.com
For example for the DNS-321 the page is at:
http://support.dlink.com/products/view.asp?productid=DNS-321
Notice the right hand bar has support numbers, hours, and other support contacts.
ECF, feel free to close out this thread, perhaps even sticky it as a notice to future generations who will need to know that they should just call in and get a replacement if their product fails.