pfff … the husband of my wife’s sister had a terrible problem with his Wireless 54G Card. Lucky I had received a new driver this week. This new driver for 02Micro Cardbus Controllers and Atheros Wireless chipsets should fix this kind of wierd problems (not connecting to wireless infrastructure networks / crashes etc. etc.
With the new driver the Acer Aspire 1700 seems to work fine.
The only thing I have to do is modify the update/re-installation of the driver cause that’s not 100% perfect yet.