>>I see, so you only have IE (which version?) on that computer. BTW, what is OS?
>>
>>I think you first need to verify that JavaScript is enabled. Also, can you view the page source and see if your validator's code is there?
>
>The problem could be in the following. When I go the main page of the applicaiton I IE window that has this message:
>

>Content from the website listed below is being blocked by the IE Enhanced Security Configuration.
>

>So it is possible that this Enhanced Security Configuration is disabling JS.

Yes, most likely this is the reason.