好象是访问了一个国内网站后，我的新计算机(Win XP)就不能联网了（无论是cable or wireless).Verizon 帮我查了好几天， 最后说是网卡坏了，Dell company sent a new one to me. 换了新卡后， 还是不能上网。router and cable work well because my old computer can connect with internet( no matter it is cable or wireless). 哪位高手能指点一下？ 谢谢！