I have been having this problem for a while; my browser just shuts down in middle of use. Sometimes a window appears asking to close this tab or all tabs. If I close the window it reappears right away, and similarly if I chose just this tab. I primarily use IE but it happens with Chrome and Firefox as well. I have downloaded AVG and Spybot and they cant find any bugs. Im not 100% sure but it seems to happen more if I log into my gmail account. Anybody with same experience? Any suggestions?