FYI - I used a dlink usb wireless adapter (it used the p54 linux module) and only intermittently worked on any kernel below 2.6.28 which made mce a little flukey (flukey meaning MCE would hang when the wireless net connection would drop, I suspect the kernel module would affect other things that MCE depended on and froze the app). I also had to modify the udev rules to rename wlan0 to ethx so mce would run properly. I just ran wire so i could be in a more mce supportable config which has made things much better for me personally.
My 2 cents...