What & Why: http://support.microsoft.com/?kbid=290989

http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

http://www.indyproject.org/KB/index....forbiddene.htm

One answer (not sure if it applies or not): http://blogs.msdn.com/jblizzard/arch.../28/10623.aspx (click on the little blue # to see the responses on how to fix this.

Else change browser or delete the history & cache of the browser.