Sorry to jump in on this post but I'm also having wireless issues -
If I set my default browser to hotspot it uses my wifi connection at home but if I leave that area I have to manually switch the default back to internet browser otherwise it just tells me there is no connection. Is there a way to get it to do this automatically i.e. set the preference as wifi but if no wifi connection is present to automatically use the internet browser?
Also my wifi keeps switching off - every couple of days. The only way to activate it again is to take the battery out and restart the handset, then it turns back on. Any other people with this problem?