In Our Office we are facing some weird problem , one of our staff PC unable to open may websites except Google and other websites .
PC is re formatted and stored fresh Windows Xp but still getting the problem but in others staffs PC , they can easily access all the websites .
We have formatted 2 times by deleting all the partition and reformatted and installed OS. but still we are not able to open many websites including Microsoft website for windows updating.
can any body guess what happening here in the affected PC