Some users are running into a rather unfortunate situation of Opera 7.60 Preview 4 crashing on startup or when manually initiating a check for new releases. This only happens when Opera Mail is disabled. Add the following to your opera6.ini file while Opera is closed to disable the check:
[User prefs] Check For New Opera=0
If that setting already exists (there's a good chance), change the value to 0. The value indicates the "unix time" in seconds since the last check (I think ;)).
Oh, and remember to remove that setting, should you do an upgrade install in the future. :)

