My Internet Explorer 6.0 is not deleting temporary files on exit. I have checked tools-internet options-advanced-security-empty temporary files when browser is closed. I notice that the temp files come from and us.i1.yimg.com even though I did not visit those websites. I also noticed a lot of network (computer to computer) traffic even though there was no communication between browser and internet. I also may get a message to the effect "do you want to display unsecured pages?". I run Process Explorer and I see while the network traffic is going on that Windows Explorer is doing something. My computer is on a dial-up modem.