Squid mixing up cache objects

We are seeing a problem with squid-2.2.STABLE4. The problem is with
websites that don't have a unique IP Address assigned to them, instead
someone may have more than 1 domain/web page sharing the same IP address.

Squid is mixing up the pages, so if you had say:

www.foo.com 192.168.1.1
www.bar.com 192.168.1.1

And you went to say www.foo.com, you accidently get served up www.bar.com.
I am not sure if this is something in our config or not, So I have posted
the config. If anyone has any idea why this may be happening, please give
me a suggestion or a direction to look. Thanks.

Brian

http_port 3128 80
cache_peer shrevenet.downlink.skycache.com sibling 3134 3132 query-refresh feeder
cache_peer shre02.dca.xpc-mii.net sibling 3128 3130
icp_query_timeout 2000
acl mirrorimage src 209.249.114.0/24
acl shrevenet_dests dst "/etc/ipaddr.list"
acl shrevenet_sources src "/etc/ipaddr.list"
acl shrevenet_domains dstdomain "/etc/domain.list"
acl zone url_regex http://fdl.msn.com/zone
no_cache deny shrevenet_dests
no_cache deny shrevenet_domains
no_cache deny zone
cache_mem 16 MB
cache_dir /var/spool/squid1 900 16 256
cache_dir /var/spool/squid2 3900 16 256
cache_dir /var/spool/squid3 3900 16 256
cache_dir /var/spool/squid4 8000 16 256
cache_dir /var/spool/squid5 8000 16 256
dns_children 25
quick_abort_min 0
quick_abort_max 0 KB
quick_abort_pct 100
half_closed_clients off
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
acl Safe_ports port 80 21 443 563 70 210 1025-65535
acl CONNECT method CONNECT
acl mars src 208.206.76.27/255.255.255.255
http_access allow manager localhost
http_access allow manager mars
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access allow shrevenet_sources
http_access allow mirrorimage
acl PURGE method purge
acl localhost src 127.0.0.1
http_access allow purge localhost
http_access deny purge
http_access deny all
icp_access allow all
miss_access allow all
cache_mgr admin@shreve.net
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
always_direct allow shrevenet_dests
always_direct allow shrevenet_domains
always_direct allow zone
uri_whitespace allow

-----------------------------------------------------
Brian Feeny (BF304) signal@shreve.net
318-222-2638 x 109 http://www.shreve.net/~signal
Network Administrator ShreveNet Inc. (ASN 11881)
Received on Thu Mar 23 2000 - 12:46:16 MST