My "cracked hinge" experience:
My m6805 is about 6 months old. I bought it April 1, 2004. The serial # starts with N3042. I had no hinge crack until about 2 weeks ago. I called eMachines, prepared to argue with them over this, but was pleasantly surprised to find that they simply gave me an RMA # without grilling me first. I sent my laptop in on Friday after 4:00 PM and received it back on Wednesday fixed. It looks great and my hard drive was not reformatted.
I am really very pleased with both eMachines and my m6805. My only current complaint is Windows XP SP2 had to be uninstalled because of various problems, including some software not working properly, and Windows not shutting down properly. I had previously flashed the m6809 bios and that made SP2 work, but I flashed back to the original bios before sending the laptop back to eMachines. (I was hoping that while they had it, THEY would upgrade the bios.)
Over all, I do not regret buying this laptop. It is awesome!!