What's your Airport Card Country code?

I live in Brazil, and bought my 17" MBP from Canada in June, and my airport Country Code right now is ZW (Zimbabwe). When i'm at college, it jumps to US. And at home, it changes to ZW. This is a problem as in some countries some frequencies are now allowed. I have the 10.6.1 SL.
It's seems that either I have a faulty Airport Card, or Snow Leopard changes the card locale depending which routers are available for connection.
So, I wanted to know if anyone is seeing somethig weird as I am in the Airport Country Code.
Here's what I see in my info. The problem is that I can't use Wireless N in this country code.
Software Versions:
Menu Extra: 6.0 (600.22)
configd plug-in: 6.0 (600.27)
System Profiler: 6.0 (600.9)
Network Preference: 6.0 (600.22)
AirPort Utility: 5.4.2 (542.23)
IO80211 Family: 3.0 (300.20)
Interfaces:
en1:
Card Type: AirPort Extreme (0x14E4, 0x8D)
Firmware Version: Broadcom BCM43xx 1.0 (5.10.91.19)
Locale: FCC
Country Code: ZW
Supported PHY Modes: 802.11 a/b/g
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
Wake On Wireless: Supported
Status: Connected
To check this out, it's under
About This Mac/
More Info.../
Airport/

Hey there. Definitely something up with Snow Leopard, country codes and airport wireless N 5GHz. I have 3 macs and 3 airport routers across the house, which have been working for years without issue wirelessly. Since the upgrade to Snow Leopard, my Macbook, and only my Macbook started not being able to connect or see the 5GHz network. My Macbook Pro and Mac Pro have no issues connecting or seeing the 5GHz network. It's not related to weak signal as I've tested the Macbook sitting next to the Airport Extreme. Interestingly there was no problem with 2.4GHz.
So I thought it might have been a coincidental breakdown of the 5GHz N antenna on the airport card in the Macbook post Snow Leopard upgrade.
Then I noticed a few posts on the net about Country Codes, Airport and Snow Leopard. This has never been an issue for me before. The Country Code is set at FR on my Macbook which is incorrect. Apparently this is set by Snow Leopard in response to routers available.
As you are aware some channels are not usable in some countries.
So I changed my Airport Extreme channel from Automatic to a fixed channel (36), and instantly the problem has been solved.
So something has changed with Snow Leopard, Country Codes and Airport, which only affects some Macs. Ugh
At least my problem was solved, hope this helps

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