HELP APPLE TV with wireless problems

[Cordeiro]

I just upgraded my imac g5 to leopard and everything went fine, but then i discovered that i lost connectivity to my apple tv. It simply can't see the wireless network!!!
The weird is that i have another apple tv in kids bedroom and is fine.
I already restore the factory settings but still can't see my wireless network.
Anyone with this problem?..ideas..? Did my apple tv just fried?

 

[FreeState]

I just upgraded my imac g5 to leopard and everything went fine, but then i discovered that i lost connectivity to my apple tv. It simply can't see the wireless network!!!
The weird is that i have another apple tv in kids bedroom and is fine.
I already restore the factory settings but still can't see my wireless network.
Anyone with this problem?..ideas..? Did my apple tv just fried?

Have you tried either of these?

If you can not see AppleTV in iTunes but AppleTV is connected to the network:

Wireless:
http://docs.info.apple.com/article.html?artnum=305003

Ethernet:
http://docs.info.apple.com/article.html?artnum=305290