Just wanted to make sure that everyone knows that if the Second Life client is "Not responding" according to the operating system, you should NOT force quit the client. There is a problem with the HTTP library that we're using during login that causes it to hang our client completely occasionally - closing the client at this point will just cause you to go to the back of the login queue.
The changes that we've made in 1.6.5(7) should make you much more likely to make it through the login process, even if it may take a longer amount of time.
We will hopefully get this problem fixed in a future release.
- Doug