I've cleared all the cookies and history. But still it's getting the same problem. I am not able to open some more sites. what i can do? i'm using a win2kpro system and it's connected to another win2kpro, which is directly connected to internet. I'm usgin wingate v.1.3 as proxy. i'm not able to open any messenger services also from my system. so please let me know what i've to do???