Recently i had bought a new laptop on which Windows Vista had been installed as my operating system. I'm using Internet Explorer 7 as my web browser. The problem is that whenever i try to chat online or try to send mail to anyone my internet explorer tabs keeps on closing automatically. I don't why i'm having such problem on my system. Can any body tell me why does internet explorer tabs keep closing? Have any body face such issue on their system? Kindly help me to resolve the above issue. Any kind of help on the above issue would be appreciated.