I am getting an “Internet Explorer cannot open the Internet site http:///xxx.aspx. Operation aborted.” error message when I go to another page and then come back to the original .aspx page. I am using the standard IE back and forward buttons to do this.

I have an AutoPostBack=True on a dropdown listbox control and SmartNavigation=True. There is no CSS, no JavaScript and no code behind. A very simple and small ASPX page. However, the error occurs when the back button is used, and if the AutoPostBack is called.

On some PCs this error occurs, but on some the error does not occur.

Is there a Windows XP patch that fixes this problem?