another piece of info
Hey. I have read this thread and I do have the same problem with the wireless connection of my MacBook (2.2GHz bought in November 07). The timing of the problem is different from other people though.
Most people seem to have to problem before an upgrade to 10.5.2-- some got fixed after the update, some still have problem. Other didnt have the problem before 10.5.2 but have the problem after the update. Mine is different...
I never had wireless connection problem since I bought my MacBook in November last year with Leopard pre-installed. The signal was always strong with 4 bars on the menu. One day, I have a friend staying at my place and he hooked up his laptop to my wireless router (and he didnt have any problem); when I connected my MacBook later while he was still online, I experienced the signal dropout which never happened to my MacBook before. After that day, even when I am the only one to connect to the router, I always have the connection problem (weak signal and periodic dropout).
Note that the symptom started in early January so my MacBook was ok with 10.5.1 for two months, and the problem was not from upgrading to 10.5.2.
Is it possible that connecting two machine to the router at the time somehow screwed up my wireless setting or priority?? I have no idea about this but now my friend is a scapegoat for my bad wireless connection now because the timing that I started to get this problem suggests so...
Just a piece of info, in case some people here have an opinion. Thanks!