Geo location not working with subdomain

i have geo location set to state level so when someone visits it will say "Hello California Visitor. when i use mydomain.com/subdomain it works fine but when i go to subdomain.mydomain.com it does no开发者_运维技巧t work properly. Any suggestions?

Thanks for helping

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Also, check out http://github.com/codejoust/session.js/

It looks like you have an issue with the path or a cookie that's including the GeoIP code.