Kayaman: Happens to me in B457 about 75% of the time, perhaps it's an XP thing..

Anyways, no big deal.. There is that other small problem in prefs though:
If you hit advanced network options all the preferences are reloaded, so if you changed anything without hitting apply it'll be reset to its last state. Havent checked to see if this was fixed in the newest release, although you didnt mention it.