Not for me -- still have the encoding problem on Windows. Looks like this:
IE, Firefox, Safari, etc - no other browsers seem to have the problem. Opera also doesn't always shut down, and I won't know until I try to run it hours later - I get a 'Opera is still shutting down' message with an option to force it to start. It also bombs fairly often with Yahoo mail.
Dunno what happened - Opera used to be great. Just seems a bit shoddy now.