Not for me.... Check with your webhost, give them your outgoing IP and tell them what is happening.
Might scan your PC as well.... perhaps a browser helper or malware is trying to sniff access information from web pages
Here is the header response
#1 Server Response: https://frompropertorocker.com/s6H0a3D5o3W9/includes/stylesheet.css
HTTP/1.1 200 OK
Date: Fri, 23 Sep 2011 00:14:07 GMT
Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.2.11
Last-Modified: Wed, 24 Aug 2011 14:34:47 GMT
ETag: "1ea0b33-2bec-4ab4136c5cfc0"
Accept-Ranges: bytes
Content-Length: 11244
Content-Type: text/css