[arch-general] problem with the new b43 module

hi all, I am having trouble with the new b43 module for my bcm4318 pci wireless device. I can connect to the internet without a hitch but the connection drops unexpectedly and randomly even in good conditions near the wireless modem after a couple of minutes or so; and it won't connect to the internet again automatically. I tried ndiswrapper with the same consequences. The interesting point is that the deprecated module bcm43xx worked flawlessly, but was removed from the updated kernel 2.6.26. I desperately need help!