You would have noticed that IE7 always goes to the RunOnce( http://runonce.msn.com/runonce2.aspx ) page on startup, even after setting the home page as blank in your internet settings.
You can prevent IE from going to the RunOnce page by using the below registry entry. Just copy the below code and paste it in a text editor and save it as DisableRunOnce.reg (or anyother name) and double click to execute it. You will not face this problem once again.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"RunOnceHasShown"=dword:00000001
"RunOnceComplete"=dword:00000001