Permission Denied Error

The first time I go the the page with the map on with IE version

6.0.2900.2180.xpsp_sp2_gdr.050301-1519

I get an error:

Line: 759
Error: Permission Denied

When I refresh the page the error goes away and the page works
perfectly, but when I close the browser and open it again the same
error occurs. Other than the map and a centerandzooom routine the page
is empty. The same page works perfect in Firefox. You can test it at
www.theneighbourhood.net/example.html

The line it refers to in the error message is in the Google Maps API
and contains:

if(typeof _apiHash!="undefined"){var zd=_apiHash;var Qb=false;var
Sb=Kd(window.location.protocol,window.location.host,window.location.pathname);for(var
fb=0;fb<Sb.length;++fb){var Id=Sb[fb];var
Jd=Gd(Id);if(zd==Jd){Qb=true;break}}if(Qb||yd(window.location.host)){Ob()}else{_c=false;alert(_mApiBadKey)}}else{Ob()};

The http://maps.google.com/apis/maps/ page seems to be working fine
with the same browser though.

Did anybody else experience this problem? Any advice on how to solve
it?

Thanks.