Try reading this: http://support.microsoft.com/?kbid=283807
Some sites require Flash to be installed so install this:
http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash
Some sites require Flash to be installed so install this:
http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash