1.0 link Rainbow Dash Network http://rainbowdash.net/ ★ (starshine) http://rainbowdash.net/starshine http://rainbowdash.net/notice/127482 @<span class="vcard"><a href="http://rainbowdash.net/user/1" class="url" title="Pony Cabal"><span class="fn nickname">administrator</span></a></span> If you set up a 301 redirect from the bare address to www, and then include the full domain with subdomain in the cookies, they won't cross between the two sites. Most likely what's happening now is both subsites are trying to use *.rainbowdash.net for the cookie and it's getting confused.