FYI Just received a Dell 600m and did not get a Windows XP disk. Sooooooooo I called support and was told this is Dells new policy, the operating system is on a hidden partition on the hard drive. Well after a smooth discussion with the rep he agreed to send me one. I explained what happens if my Hard drive crashes after my warranty has expired. He said, I would have to purchase a new hard drive from Dell and it would come with XP on the hidden partition. Yea I could see me making that argument 3 years down the road, well you rep told me...........sorry sir he was wrong and you must purchase not only a new drive but another copy of XP. Well just call me paranoid but it all ended well as I will get my disk. It only took 30 minutes to resolve the issue. BTW it could also have been me saying that it was unacceptable and I will send this machine back tomorrow. The moral to this story is, if you don't ask they don't offer. I hope this may help someone in the future.