Ajax problem check..
Most computers do have, and should have ajax enabled.
'Ajax' is new component of the internet which basically allows a web page to communicate directly with the internet. The user doesnt even have to submit or click anything for this to happen.
The main advantage of ajax, is that a web page no longer has to load a whole new page when you click on something, it can just update a part of the page which is already on the screen.
New websites are now talking advantage of this to the point that they you wont be able to use them without the use of ajax.
if your using an old computer or maybe surfing the web using your mobile phone, you could find that ajax does not work.