I installed Crunchbang Statler on my Dell Latitude E6400.
And ever since I did that, my wifi wouldn't work after I did a reboot from crunchbang, and booted into Windows 7, the other OS on the laptop.
I considered myself stupid for thinking that installing Crunchbang was the reason for this behaviour until I found that there are other people who have experienced the same problem as well.
Any idea why this is happening? Wifi works when I shutdown, and then boot into Windows 7; it doesn't work when I do a reboot from Crunchbang.