It's 1.05.00 - i've also had problems with 1.04.x, but .05 seems fine so far. Two Win XP PCs don't have problems with it, and pick up the settings even if I hibernate on the wireless lan at work and wake up at my home one.
It's down to a minor irritation now - after some fiddling, the WEP error has gone away (at least, it seems to have done) so I don't have to type in the bl**dy key all the time. It's just a case of two clicks to reselect the wireless network. Not the end of the world, even if it would be nice if it 'just worked'