i do realize that it's an alpha but nevertheless, it was really, really, unstable. it looks different(possibly due to a new font), it can't tell the difference between a php file and an exe file, and i had issues with keeping a session. I made it crash once too .
but really, a lot's changed since 9.23 and i don't feel like upgrading for the time being
i've never had that happen to me. i also haven't had issues with banking sites either. or any site for that matter. well, except ones that rely on IE.