Worse signal with Airport Graphite after Leopard upgrade

I just upgraded my MacBook Pro to Leopard. Since then, I havent been able to get a full signal with my Airport Graphite. I've read the posts here about Leopard and Airport graphite's inability to be detected by the airport utility program. The same thing has happened to me. I tried resetting my airport base station but even that i couldnt do. Please help

that does make sense, that it could be the old ones.
BUT - people are having tons of wireless problems with NEW airport extremes,
airport express, and other manufacturer's wireless routers, too. There are numerous posts on the forums about all kinds of wireless issues with Leopard.
http://www.pcworld.com/article/id,139140/article.html

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