GameXtract is reporting that Crysis Warhead could be another title from EA that people get extremely upset about, with copy-protection procedures in place that may limit the number of machines that you are able to install the game on.
According to an image found on the site, taken from the games install program, a licence agreement document contains the following; “The first end user of this License can install and authenticate CRYSIS WARHEAD on a set number of machines.”
We have contacted Crytek and EA to see if we can find out how many machines you are allowed to install onto.