I can't get the wireless connection up anymore. It keeps coming up with "TX timeout" errors a second or so after associating and starting the DHCP request... there's very little out there about this, except that I found
a recent discussion on a kernel mailing list about it. Apparently it is a known bug, and they're still hashing out why it happens; the symptom is that the timeouts crop up after a random amount of time, or after reawakening a hibernated system. Not entirely sure that mine failing every time on startup is quite the same, but I'll keep looking.
Frustrating. This might be fixed in the next stable kernel -- but I keep thinking that it was working fine last night!